<Page>

                                                                     Exhibit 4.3


================================================================================


                      INVERNESS MEDICAL INNOVATIONS, INC.,
                                   as Issuer,


                          the GUARANTORS named herein,
                                 as Guarantors,


                                       and


                      U.S. BANK TRUST NATIONAL ASSOCIATION,
                                   as Trustee


                                    INDENTURE


                          Dated as of February 10, 2004


                    8 3/4% Senior Subordinated Notes due 2012


================================================================================

<Page>

                              CROSS-REFERENCE TABLE

<Table>
<Caption>
Trust Indenture Act                                                             Indenture
      Section                                                                    Section
-------------------                                                             ---------
<S>                                                                             <C>
310(a)(1)................................................................       7.10
   (a)(2)................................................................       7.10
   (a)(3)................................................................       N.A.
   (a)(4)................................................................       N.A.
   (a)(5)................................................................       7.08; 7.10
   (b)...................................................................       7.08; 7.10; 12.02
   (c)...................................................................       N.A.
311(a)...................................................................       7.11
   (b)...................................................................       7.11
   (c)...................................................................       N.A.
312(a)...................................................................       2.05
   (b)...................................................................       12.03
   (c)...................................................................       12.03
313(a)...................................................................       7.06
   (b)(1)................................................................       N.A.
   (b)(2)................................................................       7.06
   (c)...................................................................       12.02
   (d)...................................................................       7.06
314(a)...................................................................       4.16; 12.02
   (b)...................................................................       N.A.
   (c)(1)................................................................       12.04
   (c)(2)................................................................       12.04
   (c)(3)................................................................       N.A.
   (d)...................................................................       N.A.
   (e)...................................................................       12.05
   (f)...................................................................       4.05
315(a)...................................................................       7.01
   (b)...................................................................       7.05; 12.02
   (c)...................................................................       7.01
   (d)...................................................................       7.01
   (e)...................................................................       6.11
316(a)(last sentence)....................................................       2.09
   (a)(1)(A).............................................................       6.05
   (a)(1)(B).............................................................       6.04
   (a)(2)................................................................       9.02
   (b)...................................................................       6.07
   (c)...................................................................       9.05
317(a)(1)................................................................       6.08
   (a)(2)................................................................       6.09
   (b)...................................................................       2.04
318(a)...................................................................       12.01
   (c)...................................................................       12.01
</Table>

                            N.A. means Not Applicable

 Note: This Cross-Reference Table shall not, for any purpose, be deemed to be a
part of this Indenture.

<Page>

                                TABLE OF CONTENTS

<Table>
<Caption>
                                                                                                         Page
<S>                <C>                                                                                     <C>
                                   ARTICLE ONE

                   DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01.      Definitions..............................................................................1
SECTION 1.02.      Other Definitions.......................................................................25
SECTION 1.03.      Incorporation by Reference of Trust Indenture Act.......................................26
SECTION 1.04.      Rules of Construction...................................................................27

                                   ARTICLE TWO

                                    THE NOTES

SECTION 2.01.      Form and Dating.........................................................................27
SECTION 2.02.      Execution, Authentication and Denomination; Additional Notes; Exchange Notes............28
SECTION 2.03.      Registrar and Paying Agent..............................................................29
SECTION 2.04.      Paying Agent To Hold Assets in Trust....................................................30
SECTION 2.05.      Holder Lists............................................................................30
SECTION 2.06.      Transfer and Exchange...................................................................30
SECTION 2.07.      Replacement Notes.......................................................................31
SECTION 2.08.      Outstanding Notes.......................................................................31
SECTION 2.09.      Treasury Notes..........................................................................31
SECTION 2.10.      Temporary Notes.........................................................................32
SECTION 2.11.      Cancellation............................................................................32
SECTION 2.12.      Defaulted Interest......................................................................32
SECTION 2.13.      CUSIP and ISIN Numbers..................................................................32
SECTION 2.14.      Deposit of Moneys.......................................................................32
SECTION 2.15.      Book-Entry Provisions for Global Notes..................................................33
SECTION 2.16.      Special Transfer and Exchange Provisions................................................34

                                  ARTICLE THREE

                                   REDEMPTION

SECTION 3.01.      Notices to Trustee......................................................................37
SECTION 3.02.      Selection of Notes To Be Redeemed.......................................................37
SECTION 3.03.      Notice of Redemption....................................................................37
SECTION 3.04.      Effect of Notice of Redemption..........................................................38
SECTION 3.05.      Deposit of Redemption Price.............................................................39
SECTION 3.06.      Notes Redeemed in Part..................................................................39

                                  ARTICLE FOUR

                                    COVENANTS

SECTION 4.01.      Payment of Notes........................................................................39
</Table>

                                       -i-
<Page>

<Table>
<Caption>
                                                                                                         Page
                                                                                                         ----
<S>                <C>                                                                                     <C>
SECTION 4.02.      Maintenance of Office or Agency.........................................................40
SECTION 4.03.      Corporate Existence.....................................................................40
SECTION 4.04.      Payment of Taxes........................................................................40
SECTION 4.05.      Compliance Certificate; Notice of Default...............................................40
SECTION 4.06.      Waiver of Stay, Extension or Usury Laws.................................................41
SECTION 4.07.      Change of Control.......................................................................41
SECTION 4.08.      Limitations on Additional Indebtedness..................................................43
SECTION 4.09.      Limitations on Restricted Payments......................................................45
SECTION 4.10.      Limitations on Liens....................................................................47
SECTION 4.11.      Limitations on Asset Sales..............................................................47
SECTION 4.12.      Limitations on Transactions with Affiliates.............................................51
SECTION 4.13.      Limitations on Dividend and Other Restrictions Affecting Restricted Subsidiaries........52
SECTION 4.14.      Additional Note Guarantees..............................................................53
SECTION 4.15.      Limitation on Layering Indebtedness.....................................................54
SECTION 4.16.      Reports to Holders......................................................................54
SECTION 4.17.      Limitations on Designation of Unrestricted Subsidiaries.................................54
SECTION 4.18.      Limitation on the Issuance or Sale of Equity Interests of Restricted Subsidiaries.......56
SECTION 4.19.      Conduct of Business.....................................................................56
SECTION 4.20.      Limitations on Sale and Leaseback Transactions..........................................56

                                  ARTICLE FIVE

                              SUCCESSOR CORPORATION

SECTION 5.01.      Mergers, Consolidations, Etc............................................................56

                                   ARTICLE SIX

                              DEFAULT AND REMEDIES

SECTION 6.01.      Events of Default.......................................................................58
SECTION 6.02.      Acceleration............................................................................60
SECTION 6.03.      Other Remedies..........................................................................60
SECTION 6.04.      Waiver of Past Defaults.................................................................61
SECTION 6.05.      Control by Majority.....................................................................61
SECTION 6.06.      Limitation on Suits.....................................................................61
SECTION 6.07.      Rights of Holders To Receive Payment....................................................62
SECTION 6.08.      Collection Suit by Trustee..............................................................62
SECTION 6.09.      Trustee May File Proofs of Claim........................................................62
SECTION 6.10.      Priorities..............................................................................62
SECTION 6.11.      Undertaking for Costs...................................................................63

                                  ARTICLE SEVEN

                                     TRUSTEE

SECTION 7.01.      Duties of Trustee.......................................................................63
SECTION 7.02.      Rights of Trustee.......................................................................64
</Table>

                                      -ii-
<Page>

<Table>
<Caption>
                                                                                                         Page
                                                                                                         ----
<S>                <C>                                                                                     <C>
SECTION 7.03.      Individual Rights of Trustee............................................................65
SECTION 7.04.      Trustee's Disclaimer....................................................................65
SECTION 7.05.      Notice of Default.......................................................................66
SECTION 7.06.      Reports by Trustee to Holders...........................................................66
SECTION 7.07.      Compensation and Indemnity..............................................................66
SECTION 7.08.      Replacement of Trustee..................................................................67
SECTION 7.09.      Successor Trustee by Merger, Etc........................................................68
SECTION 7.10.      Eligibility; Disqualification...........................................................68
SECTION 7.11.      Preferential Collection of Claims Against the Issuer....................................68

                                  ARTICLE EIGHT

                       DISCHARGE OF INDENTURE; DEFEASANCE

SECTION 8.01.      Termination of the Issuer's Obligations.................................................68
SECTION 8.02.      Legal Defeasance and Covenant Defeasance................................................69
SECTION 8.03.      Conditions to Legal Defeasance or Covenant Defeasance...................................70
SECTION 8.04.      Application of Trust Money..............................................................71
SECTION 8.05.      Repayment to the Issuer.................................................................72
SECTION 8.06.      Reinstatement...........................................................................72

                              ARTICLE NINE

                   AMENDMENTS, SUPPLEMENTS AND WAIVERS

SECTION 9.01.      Without Consent of Holders..............................................................72
SECTION 9.02.      With Consent of Holders.................................................................73
SECTION 9.03.      Effect on Senior Debt...................................................................74
SECTION 9.04.      Compliance with the Trust Indenture Act.................................................74
SECTION 9.05.      Revocation and Effect of Consents.......................................................74
SECTION 9.06.      Notation on or Exchange of Notes........................................................75
SECTION 9.07.      Trustee To Sign Amendments, Etc.........................................................75

                                   ARTICLE TEN

                             SUBORDINATION OF NOTES

SECTION 10.01.     Notes Subordinated to Senior Debt.......................................................75
SECTION 10.02.     Suspension of Payment When Senior Debt Is in Default....................................76
SECTION 10.03.     Notes Subordinated to Prior Payment of All Senior Debt on Dissolution,
                     Liquidation or Reorganization of the Issuer...........................................77
SECTION 10.04.     Payments May Be Made on Notes...........................................................78
SECTION 10.05.     Holders To Be Subrogated to Rights of Holders of Senior Debt............................78
SECTION 10.06.     Obligations of the Issuer Unconditional.................................................79
SECTION 10.07.     Notice to Trustee.......................................................................79
SECTION 10.08.     Reliance on Judicial Order or Certificate of Liquidating Agent..........................79
SECTION 10.09.     Trustee's Relation to Senior Debt.......................................................80
SECTION 10.10.     Subordination Rights Not Impaired by Acts or Omissions of the
                     Issuer or Holders of Senior Debt......................................................80
SECTION 10.11.     Holders Authorize Trustee To Effectuate Subordination of Notes..........................80
</Table>

                                      -iii-
<Page>

<Table>
<Caption>
                                                                                                         Page
                                                                                                         ----
<S>                <C>                                                                                    <C>
SECTION 10.12.     This Article Ten Not To Prevent Events of Default.......................................81
SECTION 10.13.     Trustee's Compensation Not Prejudiced...................................................81

                                 ARTICLE ELEVEN

                                 NOTE GUARANTEE

SECTION 11.01.     Unconditional Guarantee.................................................................81
SECTION 11.02.     Subordination of Note Guarantee.........................................................82
SECTION 11.03.     Limitation on Guarantor Liability.......................................................82
SECTION 11.04.     Execution and Delivery of Note Guarantee................................................83
SECTION 11.05.     Release of a Guarantor..................................................................83
SECTION 11.06.     Waiver of Subrogation...................................................................84
SECTION 11.07.     Immediate Payment.......................................................................84
SECTION 11.08.     No Set-Off..............................................................................84
SECTION 11.09.     Guarantee Obligations Absolute..........................................................84
SECTION 11.10.     Guarantee Obligations Continuing........................................................85
SECTION 11.11.     Guarantee Obligations Not Reduced.......................................................85
SECTION 11.12.     Guarantee Obligations Reinstated........................................................85
SECTION 11.13.     Guarantee Obligations Not Affected......................................................85
SECTION 11.14.     Waiver..................................................................................86
SECTION 11.15.     No Obligation To Take Action Against the Issuer.........................................86
SECTION 11.16.     Dealing with the Issuer and Others......................................................87
SECTION 11.17.     Default and Enforcement.................................................................87
SECTION 11.18.     Amendment, Etc..........................................................................87
SECTION 11.19.     Acknowledgment..........................................................................87
SECTION 11.20.     Costs and Expenses......................................................................88
SECTION 11.21.     No Merger or Waiver; Cumulative Remedies................................................88
SECTION 11.22.     Survival of Guarantee Obligations.......................................................88
SECTION 11.23.     Guarantee in Addition to Other Guarantee Obligations....................................88

                                 ARTICLE TWELVE

                                  MISCELLANEOUS

SECTION 12.01.     Trust Indenture Act Controls............................................................88
SECTION 12.02.     Notices.................................................................................88
SECTION 12.03.     Communications by Holders with Other Holders............................................89
SECTION 12.04.     Certificate and Opinion as to Conditions Precedent......................................90
SECTION 12.05.     Statements Required in Certificate or Opinion...........................................90
SECTION 12.06.     Rules by Paying Agent or Registrar......................................................90
SECTION 12.07.     Legal Holidays..........................................................................90
SECTION 12.08.     Governing Law...........................................................................90
SECTION 12.09.     No Adverse Interpretation of Other Agreements...........................................91
SECTION 12.10.     No Recourse Against Others..............................................................91
SECTION 12.11.     Successors..............................................................................91
SECTION 12.12.     Duplicate Originals.....................................................................91
SECTION 12.13.     Severability............................................................................91

Signatures................................................................................................S-1
</Table>

                                      -iv-
<Page>

EXHIBIT A    -     Form of Note
EXHIBIT B    -     Form of Legends
EXHIBIT C    -     Form of Certificate To Be Delivered in Connection with
                   Transfers to Non-QIB Institutional Accredited Investors
EXHIBIT D    -     Form of Certificate To Be Delivered in Connection with
                   Transfers Pursuant to Regulation S
EXHIBIT E    -     Form of Note Guarantee

Note:  This Table of Contents shall not, for any purpose, be deemed to be part
of this Indenture.

                                       -v-
<Page>

          INDENTURE dated as of February 10, 2004 among Inverness Medical
Innovations, Inc., a Delaware corporation (the "ISSUER"), and each of the
Guarantors named herein, as Guarantors, and U.S. Bank Trust National
Association, a national banking corporation organized and existing under the
laws of the United States of America, as Trustee (the "TRUSTEE").

          The Issuer has duly authorized the creation of an issue of 8 3/4%
Senior Subordinated Notes due 2012 and, to provide therefor, the Issuer and the
Guarantors have duly authorized the execution and delivery of this Indenture.
All things necessary to make the Notes, when duly issued and executed by the
Issuer and authenticated and delivered hereunder, the valid and binding
obligations of the Issuer and to make this Indenture a valid and binding
agreement of the Issuer and the Guarantors has been done.

                            THIS INDENTURE WITNESSETH

          For and in consideration of the premises and the purchase of the Notes
by the Holders thereof, the parties hereto covenant and agree, for the equal and
proportionate benefit of all Holders, as follows:

                                   ARTICLE ONE

          DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01.    DEFINITIONS.

          Set forth below are certain defined terms used in this Indenture.

          "3% CONVERTIBLE NOTES" means those Subordinated Convertible Promissory
Notes of the Issuer issued on September 20, 2002, bearing interest at the rate
of 3% per annum and due on September 20, 2008.

          "9% SUBORDINATED NOTES" means those Subordinated Promissory Notes of
the Issuer issued on September 20, 2002, bearing interest at the rate of 9% per
annum and due on September 20, 2008.

          "10% SUBORDINATED NOTES" means those Subordinated Promissory Notes of
the Issuer issued on September 20, 2002, bearing interest at the rate of 10% per
annum and due on September 20, 2008.

          "ACQUIRED INDEBTEDNESS" means (1) with respect to any Person that
becomes a Restricted Subsidiary after the Issue Date, Indebtedness of such
Person and its Subsidiaries existing at the time such Person becomes a
Restricted Subsidiary that was not incurred in connection with, or in
contemplation of, such Person becoming a Restricted Subsidiary and (2) with
respect to the Issuer or any Restricted Subsidiary, any Indebtedness of a Person
(other than the Issuer or a Restricted Subsidiary) existing at the time such
Person is merged with or into the Issuer or a Restricted Subsidiary, or
Indebtedness expressly assumed by the Issuer or any Restricted Subsidiary in
connection with the acquisition of an asset or assets from another Person, which
Indebtedness was not, in any case, incurred by such other Person in connection
with, or in contemplation of, such merger or acquisition.

          "ADDITIONAL INTEREST" has the meaning set forth in the Registration
Rights Agreement.

<Page>

          "AFFILIATE" of any Person means any other Person which directly or
indirectly controls or is controlled by, or is under direct or indirect common
control with, the referent Person. For purposes of Section 4.12, Affiliates
shall be deemed to include, with respect to any Person, any other Person (1)
which beneficially owns or holds, directly or indirectly, 10% or more of any
class of the Voting Stock of the referent Person, (2) of which 10% or more of
the Voting Stock is beneficially owned or held, directly or indirectly, by the
referenced Person or (3) with respect to an individual, any immediate family
member of such Person. For purposes of this definition, "CONTROL" of a Person
shall mean the power to direct the management and policies of such Person,
directly or indirectly, whether through the ownership of voting securities, by
contract or otherwise.

          "AGENT" means any Registrar or Paying Agent.

          "AMEND" means to amend, supplement, restate, amend and restate or
otherwise modify; and "AMENDMENT" shall have a correlative meaning.

          "ASSET" means any asset or property.

          "ASSET ACQUISITION" means:

          (1)    an Investment by the Issuer or any Restricted Subsidiary of the
     Issuer in any other Person if, as a result of such Investment, such Person
     shall become a Restricted Subsidiary of the Issuer, or shall be merged with
     or into the Issuer or any Restricted Subsidiary of the Issuer; or

          (2)    the acquisition by the Issuer or any Restricted Subsidiary of
     the Issuer of all or substantially all of the assets of any other Person or
     any division or line of business of any other Person.

          "ASSET SALE" means any sale, issuance, conveyance, transfer, lease,
assignment, license or other disposition by the Issuer or any Restricted
Subsidiary to any Person other than the Issuer or any Restricted Subsidiary
(including by means of a Sale and Leaseback Transaction or a merger or
consolidation) (collectively, for purposes of this definition, a "TRANSFER"), in
one transaction or a series of related transactions, of any assets of the Issuer
or any of its Restricted Subsidiaries other than in the ordinary course of
business. For purposes of this definition, the term "Asset Sale" shall not
include:

          (1)    transfers of cash or Cash Equivalents;

          (2)    transfers of assets (including Equity Interests) that are
     governed by, and made in accordance with, Article Five;

          (3)    Permitted Investments and Restricted Payments permitted under
     Section 4.09;

          (4)    the creation or realization of any Permitted Lien;

          (5)    transfers of damaged, worn-out or obsolete equipment or assets
     that, in the Issuer's reasonable judgment, are no longer used or useful in
     the business of the Issuer or its Restricted Subsidiaries;

          (6)    any license of intellectual property not otherwise in the
     ordinary course of business, other than the license of all or substantially
     all of the rights associated with any intellectual

                                       -2-
<Page>

     property owned or controlled by the Issuer or any of the Restricted
     Subsidiaries, if (i) such rights are used or could be used in a line of
     business then being conducted by the Issuer or any of the Restricted
     Subsidiaries and (ii) such license is for all or substantially all of the
     remaining contractual or useful life of such intellectual property,
     whichever is shorter, determined as of the date such license is granted;
     and

          (7)    any transfer or series of related transfers that, but for this
     clause, would be Asset Sales, if after giving effect to such transfers, the
     aggregate Fair Market Value of the assets transferred in such transaction
     or any such series of related transactions does not exceed $3.0 million.

          "ATTRIBUTABLE INDEBTEDNESS," when used with respect to any
Sale and Leaseback Transaction, means, as at the time of determination, the
present value (discounted at a rate equivalent to the Issuer's then-current
weighted average cost of funds for borrowed money as at the time of
determination, compounded on a semi-annual basis) of the total obligations of
the lessee for rental payments during the remaining term of the lease included
in any such Sale and Leaseback Transaction.

          "BANKRUPTCY LAW" means Title 11 of the United States Code, as amended,
or any similar federal or state law for the relief of debtors.

          "BOARD OF DIRECTORS" shall mean, with respect to any Person, (i) in
the case of any corporation, the board of directors of such Person, (ii) in the
case of any limited liability company, the board of managers of such Person,
(iii) in the case of any partnership, the Board of Directors of the general
partner of such Person and (iv) in any other case, the functional equivalent of
the foregoing.

          "BUSINESS DAY" means a day other than a Saturday, Sunday or
other day on which banking institutions in New York are authorized or required
by law to close.

          "CAPITALIZED LEASE" means a lease required to be capitalized for
financial reporting purposes in accordance with GAAP.

          "CAPITALIZED LEASE OBLIGATIONS" of any Person means the obligations of
such Person to pay rent or other amounts under a Capitalized Lease, and the
amount of such obligation shall be the capitalized amount thereof determined in
accordance with GAAP.

          "CASH EQUIVALENTS" means:

          (1)    marketable obligations with a maturity of 360 days or less
     issued or directly and fully guaranteed or insured by the United States of
     America or any agency or instrumentality thereof; PROVIDED, HOWEVER, that
     the full faith and credit of the United States of America is pledged in
     support thereof;

          (2)    demand and time deposits and certificates of deposit or
     acceptances with a maturity of 180 days or less of any financial
     institution that is a member of the Federal Reserve System having combined
     capital and surplus and undivided profits of not less than $500 million and
     is assigned at least a "B" rating by Thomson Financial BankWatch;

          (3)    commercial paper maturing no more than 180 days from the date
     of creation thereof issued by a corporation that is not the Issuer or an
     Affiliate of the Issuer, and is organized under the laws of any State of
     the United States of America or the District of Columbia and rated at least
     A-1 by S&P or at least P-1 by Moody's;

                                       -3-
<Page>

          (4)    repurchase obligations with a term of not more than ten days
     for underlying securities of the types described in clause (1) above
     entered into with any commercial bank meeting the specifications of clause
     (2) above; and

          (5)    investments in money market or other mutual funds
     substantially all of whose assets comprise securities of the types
     described in clauses (1) through (4) above.

          "CHANGE OF CONTROL" means the occurrence of any of the following
events:

          (1)    any "person" or "group" (as such terms are used in Sections
     13(d) and 14(d) of the Exchange Act), is or becomes the beneficial owner
     (as defined in Rules 13d-3 and 13d-5 under the Exchange Act, except that
     for purposes of this clause that person or group shall be deemed to have
     "beneficial ownership" of all securities that any such person or group has
     the right to acquire, whether such right is exercisable immediately or only
     after the passage of time), directly or indirectly, of Voting Stock
     representing more than 50% of the voting power of the total outstanding
     Voting Stock of the Issuer;

          (2)    during any period of two consecutive years, individuals who at
     the beginning of such period constituted the Board of Directors of the
     Issuer (together with any new directors whose election to such Board of
     Directors or whose nomination for election by the stockholders of the
     Issuer was approved by a vote of the majority of the directors of the
     Issuer then still in office who were either directors at the beginning of
     such period or whose election or nomination for election was previously so
     approved) cease for any reason to constitute a majority of the Board of
     Directors of the Issuer;

          (3)    (a) all or substantially all of the assets of the Issuer and
     the Restricted Subsidiaries are sold or otherwise transferred to any Person
     other than a Wholly-Owned Restricted Subsidiary or (b) the Issuer
     consolidates or merges with or into another Person or any Person
     consolidates or merges with or into the Issuer, in either case under this
     clause (3), in one transaction or a series of related transactions in which
     immediately after the consummation thereof Persons owning Voting Stock
     representing in the aggregate all of the total voting power of the Voting
     Stock of the Issuer immediately prior to such consummation do not own
     Voting Stock representing a majority of the total voting power of the
     Voting Stock of the Issuer or the surviving or transferee Person; or

          (4)    the Issuer shall adopt a Plan of Liquidation or dissolution or
     any such plan shall be approved by the stockholders of the Issuer.

          "CONSOLIDATED AMORTIZATION EXPENSE" for any period means the
amortization expense of the Issuer and the Restricted Subsidiaries for such
period, determined on a consolidated basis in accordance with GAAP.

          "CONSOLIDATED CASH FLOW" for any period means, without
duplication, the sum of the amounts for such period of:

          (1)    Consolidated Net Income; PLUS

          (2)    in each case only to the extent (and in the same proportion)
     deducted in determining Consolidated Net Income and with respect to the
     portion of Consolidated Net Income attributable to any Restricted
     Subsidiary only if a corresponding amount would be permitted at the date

                                       -4-
<Page>

     of determination to be distributed to the Issuer by such Restricted
     Subsidiary without prior approval (that has not been obtained), pursuant to
     the terms of its charter and all agreements, instruments, judgments,
     decrees, orders, statutes, rules and governmental regulations applicable to
     such Restricted Subsidiary or its stockholders,

                     (a)   Consolidated Income Tax Expense,

                     (b)   Consolidated Amortization Expense (but only to the
                 extent not included in Consolidated Interest Expense),

                     (c)   Consolidated Depreciation Expense,

                     (d)   Consolidated Interest Expense, and

                     (e)   all other non-cash items reducing the Consolidated
                 Net Income for such period,

     in each case determined on a consolidated basis in accordance with GAAP;
     MINUS

          (3)    the aggregate amount of all non-cash items, determined on a
     consolidated basis, to the extent such items increased Consolidated Net
     Income (including the reversal of accruals or reserves for charges that
     increased Consolidated Net Income at any time during the Four-Quarter
     Period ending on the Issue Date or thereafter) for such period; MINUS

          (4)    cash disbursements in respect of previously accrued or reserved
     items increasing Consolidated Cash Flow in that or prior periods.

          "CONSOLIDATED DEPRECIATION EXPENSE" for any period means the
depreciation expense of the Issuer and the Restricted Subsidiaries for such
period, determined on a consolidated basis in accordance with GAAP.

          "CONSOLIDATED INCOME TAX EXPENSE" for any period means the provision
for taxes of the Issuer and the Restricted Subsidiaries, determined on a
consolidated basis in accordance with GAAP.

          "CONSOLIDATED INTEREST COVERAGE RATIO" means the ratio of Consolidated
Cash Flow during the Four-Quarter Period ending on or prior to the date of the
transaction giving rise to the need to calculate the Consolidated Interest
Coverage Ratio (the "TRANSACTION DATE") to Consolidated Interest Expense for the
Four-Quarter Period. For purposes of this definition, Consolidated Cash Flow and
Consolidated Interest Expense shall be calculated after giving effect on a PRO
FORMA basis for the period of such calculation to:

          (1)    the incurrence of any Indebtedness or the issuance of any
     Preferred Stock of the Issuer or any Restricted Subsidiary (and the
     application of the proceeds thereof) and any repayment of other
     Indebtedness or redemption of other Preferred Stock (and the application of
     the proceeds therefrom) (other than the incurrence or repayment of
     Indebtedness in the ordinary course of business for working capital
     purposes pursuant to any revolving credit arrangement) occurring during the
     Four-Quarter Period or at any time subsequent to the last day of the
     Four-Quarter Period and on or prior to the Transaction Date, as if such
     incurrence, repayment, issuance or redemption, as the case may be (and the
     application of the proceeds thereof), occurred on the first day of the
     Four-Quarter Period; and

                                       -5-
<Page>

          (2)    any Asset Sale or Asset Acquisition (including, without
     limitation, any Asset Acquisition giving rise to the need to make such
     calculation as a result of the Issuer or any Restricted Subsidiary
     (including any Person who becomes a Restricted Subsidiary as a result of
     such Asset Acquisition) incurring Acquired Indebtedness and also including
     any Consolidated Cash Flow (including any pro forma expense and cost
     reductions calculated on a basis consistent with Regulation S-X under the
     Exchange Act) associated with any such Asset Acquisition) occurring during
     the Four-Quarter Period or at any time subsequent to the last day of the
     Four-Quarter Period and on or prior to the Transaction Date, as if such
     Asset Sale or Asset Acquisition (including the incurrence of, or assumption
     or liability for, any such Indebtedness or Acquired Indebtedness) occurred
     on the first day of the Four-Quarter Period.

          If the Issuer or any Restricted Subsidiary directly or indirectly
guarantees Indebtedness of a third Person, the preceding sentence shall give
effect to the incurrence of such guaranteed Indebtedness as if the Issuer or
such Restricted Subsidiary had directly incurred or otherwise assumed such
guaranteed Indebtedness.

          For purposes of calculating the Consolidated Interest Coverage Ratio
prior to the expiration of the first Four-Quarter Period subsequent to the Issue
Date, such calculation shall be on the same PRO FORMA basis as the PRO FORMA
financial statements that are presented in the Offering Memorandum.

          In calculating Consolidated Interest Expense for purposes of
determining the denominator (but not the numerator) of this Consolidated
Interest Coverage Ratio:

          (1)    interest on outstanding Indebtedness determined on a
     fluctuating basis as of the Transaction Date and which will continue to be
     so determined thereafter shall be deemed to have accrued at a fixed rate
     PER ANNUM equal to the rate of interest on this Indebtedness in effect on
     the Transaction Date;

          (2)    if interest on any Indebtedness actually incurred on the
     Transaction Date may optionally be determined at an interest rate based
     upon a factor of a prime or similar rate, a eurocurrency interbank offered
     rate, or other rates, then the interest rate in effect on the Transaction
     Date will be deemed to have been in effect during the Four-Quarter Period;
     and

          (3)    notwithstanding clause (1) or (2) above, interest on
     Indebtedness determined on a fluctuating basis, to the extent such interest
     is covered by agreements relating to Hedging Obligations, shall be deemed
     to accrue at the rate PER ANNUM resulting after giving effect to the
     operation of these agreements.

          "CONSOLIDATED INTEREST EXPENSE" for any period means the sum, without
duplication, of the total interest expense of the Issuer and the Restricted
Subsidiaries for such period, determined on a consolidated basis in accordance
with GAAP and including without duplication:

          (1)    imputed interest on Capitalized Lease Obligations and
Attributable Indebtedness;

          (2)    commissions, discounts and other fees and charges owed with
respect to letters of credit securing financial obligations, bankers' acceptance
financing and receivables financings;

          (3)    the net costs associated with Hedging Obligations;

                                       -6-
<Page>

          (4)    amortization of debt issuance costs, debt discount or premium
and other financing fees and expenses (other than the write-off of deferred debt
issuance costs resulting from the initial offering of the Notes);

          (5)    the interest portion of any deferred payment obligations;

          (6)    all other non-cash interest expense;

          (7)    capitalized interest;

          (8)    the product of (a) all dividend payments on any series of
Disqualified Equity Interests of the Issuer or any Preferred Stock of any
Restricted Subsidiary (other than any such Disqualified Equity Interests or any
Preferred Stock held by the Issuer or a Wholly-Owned Restricted Subsidiary or to
the extent paid in Qualified Equity Interests), MULTIPLIED BY (b) a fraction,
the numerator of which is one and the denominator of which is one MINUS the then
current combined federal, state and local statutory tax rate of the Issuer and
the Restricted Subsidiaries, expressed as a decimal;

          (9)    all interest payable with respect to discontinued operations;
and

          (10)   all interest on any Indebtedness of any other Person guaranteed
by the Issuer or any Restricted Subsidiary.

          Consolidated Interest Expense shall be calculated after giving effect
to Hedging Obligations (including associated costs) described in clause (1) of
the definition of "Hedging Obligations," but excluding unrealized gains and
losses with respect to Hedging Obligations.

          "CONSOLIDATED NET INCOME" for any period means the net income (or
loss) of the Issuer and the Restricted Subsidiaries for such period determined
on a consolidated basis in accordance with GAAP; PROVIDED, HOWEVER, that there
shall be excluded from such net income (to the extent otherwise included
therein), without duplication:

          (1)    the net income (or loss) of any Person (other than a Restricted
Subsidiary) in which any Person other than the Issuer and the Restricted
Subsidiaries has an ownership interest, except to the extent that cash in an
amount equal to any such income has actually been received by the Issuer or any
of its Wholly-Owned Restricted Subsidiaries during such period;

          (2)    except to the extent includible in the consolidated net income
of the Issuer pursuant to the foregoing clause (1), the net income (or loss) of
any Person that accrued prior to the date that (a) such Person becomes a
Restricted Subsidiary or is merged into or consolidated with the Issuer or any
Restricted Subsidiary or (b) the assets of such Person are acquired by the
Issuer or any Restricted Subsidiary;

          (3)    the net income of any Restricted Subsidiary during such period
to the extent that the declaration or payment of dividends or similar
distributions by such Restricted Subsidiary of that income is not permitted by
operation of the terms of its charter or any agreement, instrument, judgment,
decree, order, statute, rule or governmental regulation applicable to that
Subsidiary during such period, except that the Issuer's equity in a net loss of
any such Restricted Subsidiary for such period shall be included in determining
Consolidated Net Income;

                                       -7-
<Page>

          (4)    for the purposes of calculating the Restricted Payments Basket
only, in the case of a successor to the Issuer by consolidation, merger or
transfer of its assets, any income (or loss) of the successor prior to such
merger, consolidation or transfer of assets;

          (5)    other than for purposes of calculating the Restricted Payments
Basket, any gain (or loss), together with any related provisions for taxes on
any such gain (or the tax effect of any such loss), realized during such period
by the Issuer or any Restricted Subsidiary upon (a) the acquisition of any
securities, or the extinguishment of any Indebtedness, of the Issuer or any
Restricted Subsidiary or (b) any Asset Sale by the Issuer or any Restricted
Subsidiary;

          (6)    gains and losses due solely to fluctuations in currency values
and the related tax effects according to GAAP;

          (7)    unrealized gains and losses with respect to Hedging
Obligations; and

          (8)    any extraordinary or nonrecurring gain (or extraordinary or
nonrecurring loss), together with any related provision for taxes on any such
extraordinary or nonrecurring gain (or the tax effect of any such extraordinary
or nonrecurring loss), realized by the Issuer or any Restricted Subsidiary
during such period.

          In addition, any return of capital with respect to an Investment that
increased the Restricted Payments Basket pursuant to Section 4.09(a)(3)(v) or
decreased the amount of Investments outstanding pursuant to clause (13) of the
definition of "Permitted Investments" shall be excluded from Consolidated Net
Income for purposes of calculating the Restricted Payments Basket.

          For purposes of this definition of "Consolidated Net Income,"
"NONRECURRING" means any gain or loss as of any date that is not reasonably
likely (as determined as of such date) to recur within the two years following
such date; PROVIDED, HOWEVER, that if there was a gain or loss similar to such
gain or loss within the two years preceding such date, such gain or loss shall
not be deemed nonrecurring.

          "CONSOLIDATED NET WORTH" means, with respect to any Person as of any
date, the consolidated stockholders' equity of such Person, determined on a
consolidated basis in accordance with GAAP, less (without duplication) (1) any
amounts thereof attributable to Disqualified Equity Interests of such Person or
its Subsidiaries or any amount attributable to Unrestricted Subsidiaries and (2)
all write-ups (other than write-ups resulting from foreign currency translations
and write-ups of tangible assets of a going concern business made within twelve
months after the acquisition of such business) subsequent to the Issue Date in
the book value of any asset owned by such Person or a Subsidiary of such Person.

          "CONSOLIDATED TOTAL ASSETS" means the consolidated total assets of the
Issuer and the Restricted Subsidiaries determined on a consolidated basis in
accordance with GAAP as of the most recent date for which financial statements
of the Issuer are available.

          "CORPORATE TRUST OFFICE" means the corporate trust office of the
Trustee located at 100 Wall Street, Suite 1600, New York, New York 10005,
Attention: Corporate Trust Department, or such other office, designated by the
Trustee by written notice to the Issuer, at which at any particular time its
corporate trust business shall be administered.

          "CREDIT AGREEMENT" means the Second Amended and Restated Credit
Agreement dated as of September 30, 2003 by and among the Issuer, Wampole
Laboratories, LLC, Inverness Medical (UK) Holdings Limited, the other
Subsidiaries signatory thereto, the lenders signatory thereto, General Electric

                                       -8-
<Page>

Capital Corporation, as administrative agent, Merrill Lynch Capital, a division
of Merrill Lynch Business Financial Services Inc., as documentation agent and
co-syndication agent, UBS Securities LLC, as co-syndication agent, and GECC
Capital Markets Group, Inc. and Merrill Lynch Capital, as co-lead arrangers,
including any notes, guarantees, collateral any security documents, instruments
and agreements executed in connection therewith (including Hedging Obligations
related to the Indebtedness incurred thereunder), and in each case as amended or
refinanced from time to time, including any agreement extending the maturity of,
refinancing, replacing or otherwise restructuring (including increasing the
amount of borrowings or other Indebtedness outstanding or available to be
borrowed thereunder) all or any portion of the Indebtedness under such
agreement, and any successor or replacement agreement or agreements with the
same or any other agents, creditor, lender or group of creditors or lenders.

          "CUSTODIAN" means any receiver, trustee, assignee, liquidator or
similar official under any Bankruptcy Law.

          "DEFAULT" means (1) any Event of Default or (2) any event, act or
condition that, after notice or the passage of time or both, would be an Event
of Default.

          "DESIGNATED SENIOR DEBT" means (1) Senior Debt Indebtedness under or
in respect of the Credit Agreement and (2) any other Indebtedness constituting
Senior Debt which, in the case of clause (2), at the time of determination, (x)
has an aggregate principal amount of at least $25.0 million and (y) is
specifically designated in the instrument evidencing such Senior Debt as
"Designated Senior Debt."

          "DESIGNATION AMOUNT" has the meaning given to this term in Section
4.17(a)(2).

          "DEPOSITORY" means The Depository Trust Company, New York, New York,
or a successor thereto registered under the Exchange Act or other applicable
statute or regulation.

          "DISQUALIFIED EQUITY INTERESTS" of any Person means any class of
Equity Interests of such Person that, by its terms, or by the terms of any
related agreement or of any security into which it is convertible, puttable or
exchangeable, is, or upon the happening of any event or the passage of time
would be, required to be redeemed by such Person, whether or not at the option
of the holder thereof, or matures or is mandatorily redeemable, pursuant to a
sinking fund obligation or otherwise, in whole or in part, on or prior to the
date which is 91 days after the final maturity date of the Notes; PROVIDED,
HOWEVER, that any class of Equity Interests of such Person that, by its terms,
authorizes such Person to satisfy in full its obligations with respect to the
payment of dividends or upon maturity, redemption (pursuant to a sinking fund or
otherwise) or repurchase thereof or otherwise by the delivery of Equity
Interests that are not Disqualified Equity Interests, and that is not
convertible, puttable or exchangeable for Disqualified Equity Interests or
Indebtedness, will not be deemed to be Disqualified Equity Interests so long as
such Person satisfies its obligations with respect thereto solely by the
delivery of Equity Interests that are not Disqualified Equity Interests;
PROVIDED FURTHER, HOWEVER, that any Equity Interests that would not constitute
Disqualified Equity Interests but for provisions thereof giving holders thereof
(or the holders of any security into or for which such Equity Interests is
convertible, exchangeable or exercisable) the right to require the Issuer to
redeem such Equity Interests upon the occurrence of a Change of Control or an
asset disposition occurring prior to the final maturity date of the Notes shall
not constitute Disqualified Equity Interests if the change in control or an
asset disposition provisions applicable to such Equity Interests are no more
favorable to such holders than the provisions set forth in Section 4.07 and
Section 4.11, respectively, and such Equity Interests specifically provide that
the Issuer will not redeem any such Equity Interests pursuant to such provisions
prior to the Issuer's purchase of the Notes as required pursuant to the
provisions set forth in Section 4.07 and Section 4.11, respectively.

                                       -9-
<Page>

          "DOMESTIC SUBSIDIARY" means any Subsidiary of the Issuer that is not a
Foreign Subsidiary; PROVIDED, HOWEVER, that Morpheus Acquisition LLC shall not
be a Domestic Subsidiary for so long as it is a Subsidiary of a Foreign
Subsidiary.

          "EQUITY INTERESTS" of any Person means (1) any and all shares or other
equity interests (including common stock, preferred stock, limited liability
company interests and partnership interests) in such Person and (2) all rights
to purchase, warrants or options (whether or not currently exercisable),
participations or other equivalents of or interests in (however designated) such
shares or other interests in such Person.

          "EXCHANGE ACT" means the U.S. Securities Exchange Act of 1934, as
amended.

          "EXCHANGE NOTES" has the meaning set forth in the Registration Rights
Agreement.

          "EXCHANGE OFFER" means the offer that may be made by the Issuer
pursuant to the Registration Rights Agreement to exchange Notes bearing the
Private Placement Legend for the Exchange Notes.

          "FAIR MARKET VALUE" means, with respect to any asset, the price (after
taking into account any liabilities relating to such assets) that would be
negotiated in an arm's-length transaction for cash between a willing seller and
a willing and able buyer, neither of which is under any compulsion to complete
the transaction, as such price is determined in good faith by the Board of
Directors of the Issuer or a duly authorized committee thereof, as evidenced by
a resolution of such Board of Directors or committee.

          "FOREIGN RESTRICTED SUBSIDIARY" means any Foreign Subsidiary that is a
Restricted Subsidiary.

          "FOREIGN SUBSIDIARY" means any Subsidiary of the Issuer which (i) is
not organized under the laws of (x) the United States or any state thereof or
(y) the District of Columbia and (ii) conducts substantially all of its business
operations outside the United States of America.

          "FOUR-QUARTER PERIOD" means the most recent four consecutive full
fiscal quarters of the Issuer for which financial statements are available.

          "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession of the United States, as in effect on the Issue Date.

          "GUARANTEE" means a direct or indirect guarantee by any Person of any
Indebtedness of any other Person and includes any obligation, direct or
indirect, contingent or otherwise, of such Person: (1) to purchase or pay (or
advance or supply funds for the purchase or payment of) Indebtedness of such
other Person (whether arising by virtue of partnership arrangements, or by
agreements to keep-well, to purchase assets, goods, securities or services
(unless such purchase arrangements are on arm's-length terms and are entered
into in the ordinary course of business), to take-or-pay, or to maintain
financial statement conditions or otherwise); or (2) entered into for purposes
of assuring in any other manner the obligee of such Indebtedness of the payment
thereof or to protect such obligee against loss in respect

                                      -10-
<Page>

thereof (in whole or in part). "GUARANTEE," when used as a verb, and
"GUARANTEED" have correlative meanings.

          "GUARANTOR SENIOR DEBT" means, with respect to any Guarantor, the
principal of, premium, if any, and interest (including any interest accruing
subsequent to the filing of a petition of bankruptcy at the rate provided for in
the documentation with respect thereto, whether or not such interest is an
allowed claim under applicable law) on any Indebtedness of such Guarantor,
whether outstanding on the Issue Date or thereafter created, incurred or
assumed, unless, in the case of any particular Indebtedness, the instrument
creating or evidencing the same or pursuant to which the same is outstanding
expressly provides that such Indebtedness shall not be senior in right of
payment to the Notes.

          Without limiting the generality of the foregoing, "Guarantor Senior
Debt" shall also include the principal of, premium, if any, interest (including
any interest accruing subsequent to the filing of a petition of bankruptcy at
the rate provided for in the documentation with respect thereto, whether or not
such interest is an allowed claim under applicable law) on, and all other
amounts owing in respect of:

          (1)    all obligations of every nature of such Guarantor under, or
     with respect to, the Credit Agreement, including obligations to pay
     principal and interest, reimbursement obligations under letters of credit,
     fees, expenses and indemnities (and guarantees thereof); and

          (2)    all Hedging Obligations in respect of the Credit Agreement;

in each case whether outstanding on the Issue Date or thereafter incurred.

          Notwithstanding the foregoing, "Guarantor Senior Debt" shall not
     include:

          (1)    any Indebtedness of such Guarantor to the Issuer or any of its
     Subsidiaries;

          (2)    Indebtedness to, or guaranteed on behalf of, any director,
     officer or employee of the Issuer or any of its Subsidiaries (including
     amounts owed for compensation);

          (3)    obligations to trade creditors and other amounts incurred (but
     not under the Credit Agreement) in connection with obtaining goods,
     materials or services;

          (4)    Indebtedness represented by Disqualified Equity Interests;

          (5)    any liability for taxes owed or owing by such Guarantor;

          (6)    that portion of any Indebtedness incurred in violation of this
     Indenture (but, as to any such obligation, no such violation shall be
     deemed to exist for purposes of this clause (6) if the holder(s) of such
     obligation or their representative shall have received an Officers'
     Certificate (and/or representation or warranty) of such Guarantor to the
     effect that the incurrence of such Indebtedness does not (or, in the case
     of revolving credit indebtedness, the incurrence of the entire committed
     amount thereof at the date on which the initial borrowing thereunder is
     made would not) violate the provisions of this Indenture);

          (7)    Indebtedness which, when incurred and without respect to any
     election under Section 1111(b) of Title 11, United States Code, is without
     recourse to such Guarantor; and

                                      -11-
<Page>

          (8)    any Indebtedness which is, by its express terms, subordinated
     in right of payment to any other Indebtedness of such Guarantor.

          "GUARANTORS" means each Domestic Subsidiary on the Issue Date that
guarantees any Indebtedness or other Obligation under the Credit Agreement, and
each other Person that is required to, or at the election of the Issuer does,
become a Guarantor by the terms of the Indenture after the Issue Date, in each
case, until such Person is released from its Note Guarantee in accordance with
the terms of the Indenture.

          "HEDGING OBLIGATIONS" of any Person means the obligations of such
Person pursuant to (1) any interest rate swap agreement, interest rate collar
agreement or other similar agreement or arrangement designed to alter the risks
to that Person arising from fluctuations in interest rates, (2) agreements or
arrangements designed to alter the risks to that Person arising from
fluctuations in foreign currency exchange rates in the conduct of its
operations, or (3) any forward contract, commodity swap agreement, commodity
option agreement or other similar agreement or arrangement designed to protect
such Person against fluctuations in commodity prices, in each case entered into
in the ordinary course of business for bona fide hedging purposes and not for
the purpose of speculation.

          "HOLDER" means any registered holder, from time to time, of the Notes.

          "INCUR" means, with respect to any Indebtedness or Obligation, incur,
create, issue, assume, guarantee or otherwise become directly or, indirectly
liable, contingently or otherwise, with respect to such Indebtedness or
Obligation; PROVIDED, HOWEVER, that (1) the Indebtedness of a Person existing at
the time such Person became a Restricted Subsidiary shall be deemed to have been
incurred by such Restricted Subsidiary and (2) neither the accrual of interest
nor the accretion of original issue discount shall be deemed to be an incurrence
of Indebtedness.

          "INDEBTEDNESS" of any Person at any date means, without duplication:

          (1)    all liabilities, contingent or otherwise, of such Person for
     borrowed money (whether or not the recourse of the lender is to the whole
     of the assets of such Person or only to a portion thereof);

          (2)    all obligations of such Person evidenced by bonds, debentures,
     notes or other similar instruments;

          (3)    all reimbursement obligations of such Person in respect of
     letters of credit, letters of guaranty, bankers' acceptances and similar
     credit transactions;

          (4)    all obligations of such Person to pay the deferred and unpaid
     purchase price of property or services, except trade payables and accrued
     expenses incurred by such Person in the ordinary course of business in
     connection with obtaining goods, materials or services;

          (5)    the maximum fixed redemption or repurchase price of all
     Disqualified Equity Interests of such Person;

          (6)    all Capitalized Lease Obligations of such Person;

          (7)    all Indebtedness of others secured by a Lien on any asset of
     such Person, whether or not such Indebtedness is assumed by such Person;

                                      -12-
<Page>

          (8)    all Indebtedness of others guaranteed by such Person to the
     extent of such guarantee; PROVIDED, HOWEVER, that Indebtedness of the
     Issuer or its Subsidiaries that is guaranteed by the Issuer or the Issuer's
     Subsidiaries shall only be counted once in the calculation of the amount of
     Indebtedness of the Issuer and its Subsidiaries on a consolidated basis;

          (9)    all Attributable Indebtedness;

         (10)    to the extent not otherwise included in this definition,
     Hedging Obligations of such Person; and

         (11)    all obligations of such Person under conditional sale or other
     title retention agreements relating to assets purchased by such Person.

          The amount of any Indebtedness which is incurred at a discount to the
principal amount at maturity thereof as of any date shall be deemed to have been
incurred at the accreted value thereof as of such date. The amount of
Indebtedness of any Person at any date shall be the outstanding balance at such
date of all unconditional obligations as described above, the maximum liability
of such Person for any such contingent obligations at such date and, in the case
of clause (7), the lesser of (a) the Fair Market Value of any asset subject to a
Lien securing the Indebtedness of others on the date that the Lien attaches and
(b) the amount of the Indebtedness secured. For purposes of clause (5), the
"maximum fixed redemption or repurchase price" of any Disqualified Equity
Interests that do not have a fixed redemption or repurchase price shall be
calculated in accordance with the terms of such Disqualified Equity Interests as
if such Disqualified Equity Interests were redeemed or repurchased on any date
on which an amount of Indebtedness outstanding shall be required to be
determined pursuant to the Indenture.

          "INDENTURE" means this Indenture, as amended or supplemented from time
to time in accordance with the terms hereof.

          "INDEPENDENT DIRECTOR" means a director of the Issuer who:

          (1)    is independent with respect to the transaction at issue;

          (2)    does not have any material financial interest in the Issuer or
     any of its Affiliates (other than as a result of holding securities of the
     Issuer); and

          (3)    has not and whose Affiliates or affiliated firm has not, at any
     time during the twelve months prior to the taking of any action hereunder,
     directly or indirectly, received, or entered into any understanding or
     agreement to receive, any compensation, payment or other benefit, of any
     type or form, from the Issuer or any of its Affiliates, other than
     customary directors' fees for serving on the Board of Directors of the
     Issuer or any Affiliate and reimbursement of out-of-pocket expenses for
     attendance at the Issuer's or Affiliate's board and board committee
     meetings.

          "INDEPENDENT FINANCIAL ADVISOR" means an accounting, appraisal or
investment banking firm of recognized standing that is, in the reasonable
judgment of the Issuer's Board of Directors, qualified to perform the task for
which it has been engaged and disinterested and independent with respect to the
Issuer and its Affiliates.

          "INITIAL PURCHASERS" means UBS Securities LLC and Merrill Lynch,
Pierce, Fenner & Smith, Incorporated.

                                      -13-
<Page>

          "INSTITUTIONAL ACCREDITED INVESTOR" or "IAI" means an "accredited
investor" with the meaning of Rule 501(a)(1), (2), (3) or (7) under the
Securities Act.

          "INTEREST" means, with respect to the Notes, interest and Additional
Interest, if any, on the Notes.

          "INTEREST PAYMENT DATE" means the Stated Maturity of an installment of
interest on the Notes.

          "INVESTMENTS" of any Person means:

          (1)    all direct or indirect investments by such Person in any other
     Person in the form of loans, advances or capital contributions or other
     credit extensions constituting Indebtedness of such other Person, and any
     guarantee of Indebtedness of any other Person;

          (2)    all purchases (or other acquisitions for consideration) by such
     Person of Indebtedness, Equity Interests or other securities of any other
     Person (other than any such purchase that constitutes a Restricted Payment
     of the type described in clause (2) of the definition thereof);

          (3)    all other items that would be classified as investments
     (including purchases of assets outside the ordinary course of business) on
     a balance sheet of such Person prepared in accordance with GAAP; and

          (4)    the Designation of any Subsidiary as an Unrestricted
     Subsidiary.

Except as otherwise expressly specified in this definition, the amount of any
Investment (other than an Investment made in cash) shall be the Fair Market
Value thereof on the date such Investment is made. The amount of Investment
pursuant to clause (4) shall be the Designation Amount determined in accordance
with Section 4.17. If the Issuer or any Subsidiary sells or otherwise disposes
of any Equity Interests of any direct or indirect Subsidiary such that, after
giving effect to any such sale or disposition, such Person is no longer a
Subsidiary, the Issuer shall be deemed to have made an Investment on the date of
any such sale or other disposition equal to the Fair Market Value of the Equity
Interests of and all other Investments in such Subsidiary not sold or disposed
of, which amount shall be determined by the Board of Directors. The acquisition
by the Issuer or any Restricted Subsidiary of a Person that holds an Investment
in a third Person shall be deemed to be an Investment by the Issuer or such
Restricted Subsidiary in the third Person in an amount equal to the Fair Market
Value of the Investment held by the acquired Person in the third Person.
Notwithstanding the foregoing, neither (a) purchases or redemptions of Equity
Interests of the Issuer nor (b) acquisitions of assets by such Person shall be
deemed to be Investments.

          "ISSUE DATE" means the date on which the Notes are originally issued.

          "LIEN" means, with respect to any asset, any mortgage, deed of trust,
lien (statutory or other), pledge, lease, easement, restriction, charge,
security interest or other encumbrance of any kind or nature in respect of such
asset, whether or not filed, recorded or otherwise perfected under applicable
law, including any conditional sale or other title retention agreement, and any
lease in the nature thereof, and any filing of, or agreement to give, any
financing statement under the Uniform Commercial Code (or equivalent statutes)
of any jurisdiction (other than cautionary filings in respect of operating
leases).

                                      -14-
<Page>

          "MAJOR FOREIGN EXCHANGE" means an exchange which is the primary
non-U.S. trading location for one or more stocks included in the Morgan Stanley
Capital International Europe, Australasia and Far East Index.

          "MATURITY DATE" means February 15, 2012.

          "MOODY'S" means Moody's Investors Service, Inc., and its successors.

          "NET AVAILABLE PROCEEDS" means, with respect to any Asset Sale, the
proceeds thereof in the form of cash or Cash Equivalents, net of:

          (1)    brokerage commissions and other fees and expenses (including
     fees and expenses of legal counsel, accountants and investment banks) of
     such Asset Sale;

          (2)    provisions for taxes payable as a result of such Asset Sale
     (after taking into account any available tax credits or deductions and any
     tax sharing arrangements);

          (3)    amounts required to be paid to any Person (other than the
     Issuer or any Restricted Subsidiary) owning a beneficial interest in the
     assets subject to the Asset Sale or having a Lien thereon;

          (4)    payments of unassumed liabilities (not constituting
     Indebtedness) relating to the assets sold at the time of, or within 90 days
     after the date of, such Asset Sale; and

          (5)    appropriate amounts to be provided by the Issuer or any
     Restricted Subsidiary, as the case may be, as a reserve required in
     accordance with GAAP against any adjustment in the sale price of such asset
     or assets or liabilities associated with such Asset Sale and retained by
     the Issuer or any Restricted Subsidiary, as the case may be, after such
     Asset Sale, including pensions and other post-employment benefit
     liabilities, liabilities related to environmental matters and liabilities
     under any indemnification obligations associated with such Asset Sale, all
     as reflected in an Officers' Certificate delivered to the Trustee;
     PROVIDED, HOWEVER, that any amounts remaining after adjustments,
     revaluations or liquidations of such reserves shall constitute Net
     Available Proceeds.

          "NON-RECOURSE DEBT" means Indebtedness of an Unrestricted Subsidiary:

          (1)    as to which neither the Issuer nor any Restricted Subsidiary
     (a) provides credit support of any kind (including any undertaking,
     agreement or instrument that would constitute Indebtedness), (b) is
     directly or indirectly liable as a guarantor or otherwise, or (c)
     constitutes the lender; PROVIDED, HOWEVER, that an intercompany loan from
     the Issuer or any Restricted Subsidiary to an Unrestricted Subsidiary shall
     be deemed Non-Recourse Debt if such loan at the time such Subsidiary is
     designated an Unrestricted Subsidiary or if made later, at the time such
     intercompany loan is made, was permitted under and made in compliance with
     Section 4.09 and

          (2)    no default with respect to which (including any rights that the
     holders thereof may have to take enforcement action against an Unrestricted
     Subsidiary) would permit upon notice, lapse of time or both any holder of
     any other Indebtedness (other than the Notes) of the Issuer or any
     Restricted Subsidiary to declare a default on the other Indebtedness or
     cause the payment thereof to be accelerated or payable prior to its Stated
     Maturity.

                                      -15-
<Page>

          "NON-U.S. PERSON" has the meaning assigned to such term in
Regulation S.

          "NOTE GUARANTEE" means the subordinated guarantee by each Guarantor of
the Issuer's payment obligations under this Indenture and the Notes, executed
pursuant to this Indenture.

          "NOTES" means, collectively, the Issuer's 8 3/4% Senior Subordinated
Notes due 2012 issued in accordance with Section 2.02 (whether issued on the
Issue Date, issued as Additional Notes, issued as Exchange Notes or Private
Exchange Notes, or otherwise issued after the Issue Date) treated as a single
class of securities under this Indenture, as amended or supplemented from time
to time in accordance with the terms of this Indenture.

          "OBLIGATION" means any principal, interest, penalties, fees,
indemnification, reimbursements, costs, expenses, damages and other liabilities
payable under the documentation governing any Indebtedness.

          "OFFERING MEMORANDUM" means the offering memorandum of the Issuer and
the Guarantors relating to the Notes dated February 5, 2004.

          "OFFICER" means any of the following of the Issuer: the Chairman of
the Board of Directors, the Chief Executive Officer, the Chief Financial
Officer, the President, any Vice President, the Treasurer or the Secretary.

          "OFFICERS' CERTIFICATE" means a certificate signed by two Officers.

          "OPINION OF COUNSEL" means a written opinion from legal counsel who is
reasonably acceptable to the Trustee. The counsel may be an employee of, or
counsel to, the Issuer, a Guarantor or the Trustee.

          "PARI PASSU INDEBTEDNESS" means any Indebtedness of the Issuer or any
Guarantor that ranks PARI PASSU in right of payment with the Notes or the Note
Guarantees, as applicable.

          "PERMITTED BUSINESS" means the businesses engaged in by the Issuer and
its Subsidiaries on the Issue Date as described in the Offering Memorandum,
businesses that are otherwise within the healthcare, life sciences or diagnostic
industries and businesses that are reasonably related thereto.

          "PERMITTED INVESTMENT" means:

          (1)    Investments by the Issuer or any Restricted Subsidiary (a) in
     any Restricted Subsidiary or (b) including the purchase price paid for and
     reasonable transaction costs related thereto, in any Person that is or will
     become immediately after or substantially concurrent with such Investment a
     Restricted Subsidiary or that will merge or consolidate into the Issuer or
     a Restricted Subsidiary;

          (2)    Investments in the Issuer by any Restricted Subsidiary;

          (3)    loans and advances to directors, employees and officers of the
     Issuer and the Restricted Subsidiaries for BONA FIDE business purposes and
     to purchase Equity Interests of the Issuer not in excess of $2.0 million at
     any one time outstanding, in addition to any such loans outstanding on the
     Issue Date;

                                      -16-
<Page>

          (4)    Hedging Obligations incurred pursuant to Section 4.08(b)(4);

          (5)    cash and Cash Equivalents;

          (6)    receivables owing to the Issuer or any Restricted Subsidiary
     and payable or dischargeable in accordance with customary trade terms;
     PROVIDED, HOWEVER, that such trade terms may include such concessionary
     trade terms as the Issuer or any such Restricted Subsidiary deems
     reasonable under the circumstances;

          (7)    Investments in securities of trade creditors or customers
     received pursuant to any plan of reorganization or similar arrangement upon
     the bankruptcy or insolvency of such trade creditors or customers;

          (8)    Investments made by the Issuer or any Restricted Subsidiary as
     a result of consideration received in connection with an Asset Sale made in
     compliance with Section 4.11;

          (9)    lease, utility and other similar deposits in the ordinary
     course of business;

          (10)   Investments made by the Issuer or a Restricted Subsidiary for
     consideration consisting only of Qualified Equity Interests of the Issuer;

          (11)   stock, obligations or securities received in settlement of
     debts created in the ordinary course of business and owing to the Issuer or
     any Restricted Subsidiary or in satisfaction of judgments;

          (12)   Investments existing on the Issue Date; and

          (13)   other Investments in an aggregate amount not to exceed $15.0
     million at any one time outstanding (with each Investment being valued as
     of the date made and without regard to subsequent changes in value).

          The amount of Investments outstanding at any time pursuant to clause
(13) above shall be deemed to be reduced:

          (a)    upon the disposition or repayment of or return on any
     Investment made pursuant to clause (13) above, by an amount equal to the
     return of capital with respect to such Investment to the Issuer or any
     Restricted Subsidiary (to the extent not included in the computation of
     Consolidated Net Income), less the cost of the disposition of such
     Investment and net of taxes; and

          (b)    upon a Redesignation of an Unrestricted Subsidiary as a
     Restricted Subsidiary, by an amount equal to the lesser of (x) the Fair
     Market Value of the Issuer's proportionate interest in such Subsidiary
     immediately following such Redesignation, and (y) the aggregate amount of
     Investments in such Subsidiary that increased (and did not previously
     decrease) the amount of Investments outstanding pursuant to clause (13)
     above.

          "PERMITTED JUNIOR SECURITIES" means:

          (1)    Equity Interests in the Issuer or any Guarantor; or

                                      -17-
<Page>

          (2)    debt securities that are subordinated to (a) all Senior Debt
     and Guarantor Senior Debt and (b) any debt securities issued in exchange
     for Senior Debt, in each case, to substantially the same extent as, or to a
     greater extent than, the Notes and the Note Guarantees are subordinated to
     Senior Debt and Guarantor Senior Debt under the Indenture.

          "PERMITTED LIENS" means the following types of Liens:

          (1)    Liens for taxes, assessments or governmental charges or claims
     either (a) not delinquent or payable without penalty or (b) contested in
     good faith by appropriate proceedings and as to which the Issuer or the
     Restricted Subsidiaries shall have set aside on its books such reserves as
     may be required pursuant to GAAP;

          (2)    statutory, contractual or common law Liens of landlords and
     Liens of carriers, warehousemen, mechanics, suppliers, materialmen,
     repairmen and other Liens imposed by law incurred in the ordinary course of
     business for sums not yet delinquent or being contested in good faith, if
     such reserve or other appropriate provision, if any, as shall be required
     by GAAP shall have been made in respect thereof;

          (3)    Liens incurred or deposits made in the ordinary course of
     business in connection with workers' compensation, unemployment insurance
     and other types of social security, or to secure the performance of
     tenders, statutory obligations, surety and appeal bonds, bids, leases,
     government contracts, performance and return-of-money bonds and other
     similar obligations (exclusive of obligations for the payment of borrowed
     money);

          (4)    Liens upon specific items of inventory, equipment or other
     goods and proceeds of any Person securing such Person's obligations in
     respect of bankers' acceptances issued or created for the account of such
     Person to facilitate the purchase, shipment or storage of such inventory or
     other goods;

          (5)    attachment or judgment Liens not giving rise to a Default so
     long as any appropriate legal proceedings which may have been duly
     initiated for the review of such judgment have not been finally terminated
     or the period within which the proceedings may be initiated has not
     expired;

          (6)    easements, rights-of-way, zoning restrictions and other similar
     charges, restrictions or encumbrances in respect of real property or
     immaterial imperfections of title which are customary or do not, in the
     aggregate, impair in any material respect the ordinary conduct of the
     business of the Issuer and the Restricted Subsidiaries taken as a whole;

          (7)    Liens securing reimbursement obligations with respect to
     commercial letters of credit which encumber documents, goods covered
     thereby, and other assets relating to such letters of credit and products
     and proceeds thereof;

          (8)    Liens encumbering deposits made to secure obligations arising
     from statutory, regulatory, contractual or warranty requirements of the
     Issuer or any Restricted Subsidiary, including rights of offset and setoff;

          (9)    bankers' Liens, rights of setoff and other similar Liens
     existing solely with respect to cash and Cash Equivalents on deposit in one
     or more of accounts maintained by the Issuer or any Restricted Subsidiary,
     in each case granted in the ordinary course of business in favor

                                      -18-
<Page>

     of the bank or banks with which such accounts are maintained, securing
     amounts owing to such bank with respect to cash management and operating
     account arrangements, including those involving pooled accounts and netting
     arrangements; PROVIDED, HOWEVER, that in no case shall any such Liens
     secure (either directly or indirectly) the repayment of any Indebtedness;

         (10)    leases or subleases (or any Liens on the property related
     thereto) granted to others that do not materially interfere with the
     ordinary course of business of the Issuer or any Restricted Subsidiary;

         (11)    Liens arising from filing Uniform Commercial Code financing
     statements regarding leases;

         (12)    Liens securing all of the Notes and Exchange Notes and Liens
     securing any Note Guarantee;

         (13)    Liens securing Senior Debt or Guarantor Senior Debt;

         (14)    Liens existing on the Issue Date securing Indebtedness
     outstanding on the Issue Date;

         (15)    Liens in favor of the Issuer or a Restricted Subsidiary;

         (16)    Liens securing Purchase Money Indebtedness;

         (17)    Liens securing Acquired Indebtedness permitted to be incurred
     under this Indenture; PROVIDED, HOWEVER, that the Liens do not extend to
     assets not subject to such Lien at the time of acquisition (other than
     improvements thereon) and are no more favorable to the lienholders than
     those securing such Acquired Indebtedness prior to the incurrence of such
     Acquired Indebtedness by the Issuer or a Restricted Subsidiary;

         (18)    Liens on assets of a Person existing at the time such Person is
     acquired or merged with or into or consolidated with the Issuer or any such
     Restricted Subsidiary (and not created in anticipation or contemplation
     thereof);

         (19)    Liens to secure Refinancing Indebtedness of Indebtedness
     secured by Liens referred to in the foregoing clauses (14), (17) and (18);
     PROVIDED, HOWEVER, that in each case such Liens do not extend to any
     additional assets (other than improvements thereon and replacements
     thereof) and such Refinancing Indebtedness so secured shall not be
     subordinated in right of payment to any other Indebtedness;

         (20)    Liens to secure Attributable Indebtedness and/or that are
     incurred pursuant to Section 4.20; PROVIDED, HOWEVER, that any such Lien
     shall not extend to or cover any assets of the Issuer or any Restricted
     Subsidiary other than the assets which are the subject of the Sale and
     Leaseback Transaction in which the Attributable Indebtedness is incurred;

         (21)    Liens in favor of customs and revenue authorities arising as a
     matter of law to secure payment of customs duties in connection with the
     importation of goods; and

                                      -19-
<Page>

         (22)    Liens incurred in the ordinary course of business of the Issuer
     or any Guarantor with respect to obligations (other than Indebtedness) that
     do not in the aggregate exceed $2.0 million at any one time outstanding.

          "PERSON" means any individual, corporation, partnership, limited
liability company, joint venture, incorporated or unincorporated association,
joint-stock company, trust, unincorporated organization or government or other
agency or political subdivision thereof or other entity of any kind.

          "PLAN OF LIQUIDATION" with respect to any Person, means a plan that
provides for, contemplates or the effectuation of which is preceded or
accompanied by (whether or not substantially contemporaneously, in phases or
otherwise): (1) the sale, lease, conveyance or other disposition of all or
substantially all of the assets of such Person otherwise than as an entirety or
substantially as an entirety; and (2) the distribution of all or substantially
all of the proceeds of such sale, lease, conveyance or other disposition of all
or substantially all of the remaining assets of such Person to holders of Equity
Interests of such Person.

          "PREFERRED STOCK" means, with respect to any Person, any and all
preferred or preference stock or other equity interests (however designated) of
such Person whether now outstanding or issued after the Issue Date.

          "PRINCIPAL" means, with respect to the Notes, the principal of, and
premium, if any, on the Notes.

          "PRIVATE EXCHANGE" has the meaning given to it in the Registration
Rights Agreement.

          "PRIVATE EXCHANGE NOTES" has the meaning given to it in the
Registration Rights Agreement.

          "PRIVATE PLACEMENT LEGEND" means the legends initially set forth on
the Notes in the form set forth in EXHIBIT B.

          "PURCHASE MONEY INDEBTEDNESS" means Indebtedness, including
Capitalized Lease Obligations, of the Issuer or any Restricted Subsidiary
incurred for the purpose of financing all or any part of the purchase price of
property, plant or equipment used in the business of the Issuer or any
Restricted Subsidiary or the cost of installation, construction or improvement
thereof; PROVIDED, HOWEVER, that (1) the amount of such Indebtedness shall not
exceed such purchase price or cost, (2) such Indebtedness shall not be secured
by any asset other than the specified asset being financed or, in the case of
real property or fixtures, including additions and improvements, the real
property to which such asset is attached and (3) such Indebtedness shall be
incurred within 90 days after such acquisition of such asset by the Issuer or
such Restricted Subsidiary or such installation, construction or improvement.

          "QUALIFIED EQUITY INTERESTS" means Equity Interests of the Issuer
other than Disqualified Equity Interests; PROVIDED, HOWEVER, that such Equity
Interests shall not be deemed Qualified Equity Interests to the extent sold or
owed to a Subsidiary of the Issuer or financed, directly or indirectly, using
funds (1) borrowed from the Issuer or any Subsidiary of the Issuer until and to
the extent such borrowing is repaid or (2) contributed, extended, guaranteed or
advanced by the Issuer or any Subsidiary of the Issuer (including in respect of
any employee stock ownership or benefit plan).

                                      -20-
<Page>

          "QUALIFIED EQUITY OFFERING" means the issuance and sale of Qualified
Equity Interests of the Issuer to Persons other than any other Person who is
not, prior to such issuance and sale, an Affiliate of the Issuer.

          "QUALIFIED INSTITUTIONAL BUYER" or "QIB" shall have the meaning
specified in Rule 144A under the Securities Act.

          "RECORD DATE" means the applicable Record Date specified in the Notes;
PROVIDED, HOWEVER, that if any such date is not a Business Day, the Record Date
shall be the first day immediately succeeding such specified day that is a
Business Day.

          "REDEEM" means to redeem, repurchase, purchase, defease, retire,
discharge or otherwise acquire or retire for value; and "REDEMPTION" shall have
a correlative meaning; PROVIDED, HOWEVER, that this definition shall not apply
for purposes of Section 5 or Section 6 of the Notes or Article Three.

          "REDEMPTION DATE," when used with respect to any Note to be redeemed,
means the date fixed for such redemption pursuant to this Indenture and the
Notes.

          "REDEMPTION PRICE," when used with respect to any Note to be redeemed,
means the price fixed for such redemption, payable in immediately available
funds, pursuant to this Indenture and the Notes.

          "REFINANCE" means to refinance, repay, prepay, replace, renew or
refund.

          "REFINANCING INDEBTEDNESS" means Indebtedness of the Issuer or a
Restricted Subsidiary issued in exchange for, or the proceeds from the issuance
and sale or disbursement of which are used substantially concurrently to redeem
or refinance in whole or in part, or constituting an amendment of, any
Indebtedness of the Issuer or any Restricted Subsidiary (the "REFINANCED
INDEBTEDNESS"); PROVIDED, HOWEVER, that:

          (1)    the principal amount (or accreted value, in the case of
     Indebtedness issued at a discount) of the Refinancing Indebtedness does not
     exceed the principal amount (or accreted value, as the case may be) of the
     Refinanced Indebtedness plus the amount of accrued and unpaid interest on
     the Refinanced Indebtedness, any premium paid to the holders of the
     Refinanced Indebtedness and reasonable expenses incurred in connection with
     the incurrence of the Refinancing Indebtedness;

          (2)    the Refinancing Indebtedness is the obligation of the same
     Person as that of the Refinanced Indebtedness;

          (3)    if the Refinanced Indebtedness was subordinated to the Notes or
     the Note Guarantees, as the case may be, then such Refinancing
     Indebtedness, by its terms, is subordinate in right of payment to the Notes
     or the Note Guarantees, as the case may be, at least to the same extent as
     the Refinanced Indebtedness, and if the Refinanced Indebtedness was PARI
     PASSU with the Notes or the Note Guarantees, as the case may be, then the
     Refinancing Indebtedness ranks PARI PASSU with, or is subordinated to, the
     Notes or the Note Guarantees, as the case may be;

          (4)    the Refinancing Indebtedness is scheduled to mature either (a)
     no earlier than the Refinanced Indebtedness being repaid or amended or (b)
     after the maturity date of the Notes;

                                      -21-
<Page>

          (5)    the portion, if any, of the Refinancing Indebtedness that is
     scheduled to mature on or prior to the maturity date of the Notes has a
     Weighted Average Life to Maturity at the time such Refinancing Indebtedness
     is incurred that is equal to or greater than the Weighted Average Life to
     Maturity of the portion of the Refinanced Indebtedness being repaid that is
     scheduled to mature on or prior to the maturity date of the Notes; and

          (6)    the Refinancing Indebtedness is secured only to the extent, if
     at all, and by the assets, that the Refinanced Indebtedness being repaid or
     amended is secured.

          "REGISTRATION RIGHTS AGREEMENT" means the Registration Rights
Agreement dated as of February 10, 2004 among the Issuer, the Guarantors and the
Initial Purchasers, as amended, supplemented or modified from time to time, and
any similar agreement entered into in connection with the issuance of any
Additional Notes.

          "REGULATION S" means Regulation S under the Securities Act.

          "REPRESENTATIVE" means any agent or representative in respect of any
Designated Senior Debt; PROVIDED, HOWEVER, that if, and for so long as, any
Designated Senior Debt lacks such representative, then the Representative for
such Designated Senior Debt shall at all times constitute the holders of a
majority in outstanding principal amount of such Designated Senior Debt.

          "RESPONSIBLE OFFICER" means, when used with respect to the Trustee,
any officer in the Corporate Trust Office of the Trustee to whom any corporate
trust matter is referred because of such officer's knowledge of and familiarity
with the particular subject and shall also mean any officer who shall have
direct responsibility for the administration of this Indenture.

          "RESTRICTED PAYMENT" means any of the following:

          (1)    the declaration or payment of any dividend or any other
     distribution on Equity Interests of the Issuer or any Restricted Subsidiary
     or any payment made to the direct or indirect holders (in their capacities
     as such) of Equity Interests of the Issuer or any Restricted Subsidiary by
     the Issuer or any Restricted Subsidiary, including any payment in
     connection with any merger or consolidation involving the Issuer but
     excluding (a) dividends or distributions payable solely in Qualified Equity
     Interests and (b) in the case of Restricted Subsidiaries, dividends or
     distributions payable to the Issuer or to a Restricted Subsidiary and PRO
     RATA dividends or distributions payable to minority stockholders of any
     Restricted Subsidiary;

          (2)    the redemption of any Equity Interests of the Issuer or any
     Restricted Subsidiary, including any payment by the Issuer or any
     Restricted Subsidiary in connection with any merger or consolidation
     involving the Issuer but excluding any such Equity Interests held by the
     Issuer or any Restricted Subsidiary and any redemptions to the extent
     payable in Equity Interests of the Issuer or of an acquiror of the Issuer,
     in either case other than Disqualified Equity Interests;

          (3)    any Investment other than a Permitted Investment; or

          (4)    any redemption prior to the scheduled maturity or prior to any
     scheduled repayment of principal or sinking fund payment, as the case may
     be, in respect of Subordinated Indebtedness, other than the prepayment of
     the 9% Subordinated Notes.

                                      -22-
<Page>

          "RESTRICTED SECURITY" means a Note that constitutes a "restricted
security" within the meaning of Rule 144(a)(3) under the Securities Act;
PROVIDED, HOWEVER, that the Trustee shall be entitled to request and
conclusively rely on an Opinion of Counsel with respect to whether any Note
constitutes a Restricted Security.

          "RESTRICTED SUBSIDIARY" means any Subsidiary of the Issuer other than
an Unrestricted Subsidiary.

          "RULE 144A" means Rule 144A under the Securities Act.

          "S&P" means Standard & Poor's Ratings Services, a division of The
McGraw-Hill Companies, Inc., and its successors.

          "SALE AND LEASEBACK TRANSACTIONS" means with respect to any Person an
arrangement with any bank, insurance company or other lender or investor or to
which such lender or investor is a party, providing for the leasing by such
Person of any asset of such Person which has been or is being sold or
transferred by such Person to such lender or investor or to any Person to whom
funds have been or are to be advanced by such lender or investor on the security
of such asset.

          "SEC" means the U.S. Securities and Exchange Commission.

          "SECRETARY'S CERTIFICATE" means a certificate signed by the Secretary
of the Issuer.

          "SECURITIES ACT" means the U.S. Securities Act of 1933, as amended.

          "SENIOR DEBT" means the principal of, premium, if any, and interest
(including any interest accruing subsequent to the filing of a petition of
bankruptcy at the rate provided for in the documentation with respect thereto,
whether or not such interest is an allowed claim under applicable law) on any
Indebtedness of the Issuer, whether outstanding on the Issue Date or thereafter
created, incurred or assumed, unless, in the case of any particular
Indebtedness, the instrument creating or evidencing the same or pursuant to
which the same is outstanding expressly provides that such Indebtedness shall
not be senior in right of payment to the Notes.

          Without limiting the generality of the foregoing, "Senior Debt" shall
also include the principal of, premium, if any, interest (including any interest
accruing subsequent to the filing of a petition of bankruptcy at the rate
provided for in the documentation with respect thereto, whether or not such
interest is an allowed claim under applicable law) on, and all other amounts
owing in respect of:

          (1)    all obligations of every nature under, or with respect to, the
     Credit Agreement, including obligations to pay principal and interest,
     reimbursement obligations under letters of credit, fees, expenses and
     indemnities (and guarantees thereof); and

          (2)    all Hedging Obligations in respect of the Credit Agreement;

in each case whether outstanding on the Issue Date or thereafter incurred.

          Notwithstanding the foregoing, "Senior Debt" shall not include:

          (1)    any Indebtedness of the Issuer to any of its Subsidiaries;

                                      -23-
<Page>

          (2)    Indebtedness to, or guaranteed on behalf of, any director,
     officer or employee of the Issuer or any of its Subsidiaries (including
     amounts owed for compensation);

          (3)    obligations to trade creditors and other amounts incurred (but
     not under the Credit Agreement) in connection with obtaining goods,
     materials or services;

          (4)    Indebtedness represented by Disqualified Equity Interests;

          (5)    any liability for taxes owed or owing by the Issuer;

          (6)    that portion of any Indebtedness incurred in violation of this
     Indenture (but, as to any such obligation, no such violation shall be
     deemed to exist for purposes of this clause (6) if the holder(s) of such
     obligation or their representative shall have received an Officers'
     Certificate (and/or representation or warranty) of the Issuer to the effect
     that the incurrence of such Indebtedness does not (or, in the case of
     revolving credit indebtedness, the incurrence of the entire committed
     amount thereof at the date on which the initial borrowing thereunder is
     made would not) violate the provisions of this Indenture);

          (7)    Indebtedness which, when incurred and without respect to any
     election under Section 1111(b) of Title 11, United States Code, is without
     recourse to the Issuer; and

          (8)    any Indebtedness which is, by its express terms, subordinated
     in right of payment to any other Indebtedness of the Issuer.

          "SIGNIFICANT SUBSIDIARY" means (1) any Restricted Subsidiary that
would be a "significant subsidiary" as defined in Regulation S-X promulgated
pursuant to the Securities Act as such Regulation is in effect on the Issue Date
and (2) any Restricted Subsidiary that, when aggregated with all other
Restricted Subsidiaries that are not otherwise Significant Subsidiaries and as
to which any event described in clause (7) or (8) under Section 6.01 has
occurred and is continuing, would constitute a Significant Subsidiary under
clause (1) of this definition.

          "STATED MATURITY" means, with respect to any installment of interest
or principal on any Indebtedness, the date on which such payment of interest or
principal is scheduled to be paid in the documentation governing such
Indebtedness, and shall not include any contingent obligations to repay, redeem
or repurchase any such interest or principal prior to the date originally
scheduled for the payment thereof.

          "SUBORDINATED INDEBTEDNESS" means Indebtedness of the Issuer or any
Restricted Subsidiary that is subordinated in right of payment to the Notes or
the Note Guarantees, respectively.

          "SUBSIDIARY" means, with respect to any Person:

          (1)    any corporation, limited liability company, association or
     other business entity of which more than 50% of the total voting power of
     the Equity Interests entitled (without regard to the occurrence of any
     contingency) to vote in the election of the Board of Directors thereof are
     at the time owned or controlled, directly or indirectly, by such Person or
     one or more of the other Subsidiaries of that Person (or a combination
     thereof); and

                                      -24-
<Page>

          (2)    any partnership (a) the sole general partner or the managing
     general partner of which is such Person or a Subsidiary of such Person or
     (b) the only general partners of which are such Person or of one or more
     Subsidiaries of such Person (or any combination thereof).

Unless otherwise specified, "Subsidiary" refers to a Subsidiary of the Issuer.

          "TRANSACTION DATE" has the meaning assigned to such term in the
definition of Consolidated Interest Coverage Ratio.

          "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939, as
amended.

          "TRUSTEE" means the party named as such in this Indenture until a
successor replaces it in accordance with the provisions of this Indenture and
thereafter means such successor.

          "UNRESTRICTED SUBSIDIARY" means, (1) on the Issue Date, each of IVC
Industries, Inc. and Orgenics, Ltd. and each of their respective Subsidiaries,
(2) any other Subsidiary that at the time of determination shall be designated
an Unrestricted Subsidiary by the Board of Directors of the Issuer in accordance
with Section 4.17 and (3) any Subsidiary of an Unrestricted Subsidiary.

          "U.S. GOVERNMENT OBLIGATIONS" means direct non-callable obligations
of, or obligations guaranteed by, the United States of America for the payment
of which guarantee or obligations the full faith and credit of the United States
is pledged.

          "U.S. LEGAL TENDER" means such coin or currency of the United States
of America that at the time of payment shall be legal tender for the payment of
public and private debts.

          "VOTING STOCK" with respect to any Person, means securities of any
class of Equity Interests of such Person entitling the holders thereof (whether
at all times or only so long as no senior class of stock or other relevant
equity interest has voting power by reason of any contingency) to vote in the
election of members of the Board of Directors of such Person.

          "WEIGHTED AVERAGE LIFE TO MATURITY" when applied to any Indebtedness
at any date, means the number of years obtained by dividing (1) the sum of the
products obtained by multiplying (a) the amount of each then remaining
installment, sinking fund, serial maturity or other required payment of
principal, including payment at final maturity, in respect thereof by (b) the
number of years (calculated to the nearest one-twelfth) that will elapse between
such date and the making of such payment by (2) the then outstanding principal
amount of such Indebtedness.

          "WHOLLY-OWNED RESTRICTED SUBSIDIARY" means a Restricted Subsidiary of
which 100% of the Equity Interests (except for directors' qualifying shares or
certain minority interests owned by other Persons solely due to local law
requirements that there be more than one stockholder, but which interest is not
in excess of what is required for such purpose) are owned directly by the Issuer
or through one or more Wholly-Owned Restricted Subsidiaries.

SECTION 1.02.    OTHER DEFINITIONS.

<Table>
<Caption>
   Term                                                                          Defined in Section
----------                                                                     ----------------------
<S>                                                                                     <C>
"Additional Notes"..........................................................            2.02
"Affiliate Transaction".....................................................            4.12
"Authentication Order"......................................................            2.02
</Table>

                                      -25-
<Page>

<Table>
<Caption>
   Term                                                                          Defined in Section
----------                                                                     ----------------------
<S>                                                                                   <C>
"Change of Control Offer"...................................................            4.07
"Change of Control Payment Date"............................................            4.07
"Change of Control Purchase Price"..........................................            4.07
"Covenant Defeasance".......................................................            8.02
"Coverage Ratio Exception"..................................................            4.08
"Designated Non-Cash Consideration".........................................            4.11
"Designation"...............................................................            4.17
"Designation Amount"........................................................            4.17
"Event of Default"..........................................................            6.01
"Excess Proceeds"...........................................................            4.11
"Global Notes"..............................................................            2.01
"Guarantee Obligations".....................................................           11.01
"IAI Global Note"...........................................................            2.01
"Initial Global Notes"......................................................            2.01
"Initial Notes".............................................................            2.02
"Issuer" ...................................................................          Preamble
"Legal Defeasance"..........................................................            8.02
"Net Proceeds Deficiency"...................................................            4.11
"Net Proceeds Offer"........................................................            4.11
"Net Proceeds Payment Date".................................................            4.11
"Non-Payment Default".......................................................           10.02
"Offered Price".............................................................            4.11
"144A Global Note"..........................................................            2.01
"Pari Passu Indebtedness Price".............................................            4.11
"Participants"..............................................................            2.15
"Paying Agent"..............................................................            2.03
"Payment Amount"............................................................            4.11
"Payment Blockage Notice"...................................................           10.02
"Payment Blockage Period"...................................................           10.02
"Payment Default"...........................................................           10.02
"Permitted Indebtedness"....................................................            4.08
"Physical Notes"............................................................            2.01
"Redesignation".............................................................            4.17
"Registrar".................................................................            2.03
"Regulation S Global Note"..................................................            2.01
"Restricted Payments Basket"................................................            4.09
"Successor".................................................................            5.01
</Table>

SECTION 1.03.    INCORPORATION BY REFERENCE OF TRUST INDENTURE ACT.

          Whenever this Indenture refers to a provision of the Trust Indenture
Act, such provision is incorporated by reference in, and made a part of, this
Indenture. The following Trust Indenture Act terms used in this Indenture have
the following meanings:

          "indenture securities" means the Notes.

          "indenture security holder" means a Holder.

                                      -26-
<Page>

          "indenture to be qualified" means this Indenture.

          "indenture trustee" or "institutional trustee" means the Trustee.

          "obligor" on the indenture securities means the Issuer, any Guarantor
or any other obligor on the Notes.

          All other Trust Indenture Act terms used in this Indenture that are
defined by the Trust Indenture Act, defined by Trust Indenture Act reference to
another statute or defined by SEC rule and not otherwise defined herein have the
meanings assigned to them therein.

SECTION 1.04.    RULES OF CONSTRUCTION.

          Unless the context otherwise requires:

          (1)    a term has the meaning assigned to it;

          (2)    an accounting term not otherwise defined has the meaning
     assigned to it in accordance with GAAP;

          (3)    "or" is not exclusive;

          (4)    words in the singular include the plural, and words in the
     plural include the singular;

          (5)    provisions apply to successive events and transactions;

          (6)    "herein," "hereof" and other words of similar import refer to
     this Indenture as a whole and not to any particular Article, Section or
     other subdivision; and

          (7)    the words "including," "includes" and similar words shall be
     deemed to be followed by "without limitation."

                                   ARTICLE TWO

                                    THE NOTES

SECTION 2.01.    FORM AND DATING.

          The Notes and the Trustee's certificate of authentication shall be
substantially in the form of EXHIBIT A hereto. The Notes may have notations,
legends or endorsements required by law, stock exchange rule or usage. The
Issuer shall approve the form of the Notes and any notation, legend or
endorsement on them. Each Note shall be dated the date of its issuance and show
the date of its authentication. Each Note shall have an executed Note Guarantee
from each of the Guarantors endorsed thereon substantially in the form of
EXHIBIT E.

          The terms and provisions contained in the Notes and the Note
Guarantees shall constitute, and are hereby expressly made, a part of this
Indenture and, to the extent applicable, the Issuer, the Guarantors and the
Trustee, by their execution and delivery of this Indenture, expressly agree to
such terms and provisions and to be bound thereby.

                                      -27-
<Page>

          Notes offered and sold in reliance on Rule 144A shall be issued
initially in the form of a single permanent global Note in registered form,
substantially in the form set forth in EXHIBIT A (the "144A GLOBAL NOTE"),
deposited with the Trustee, as custodian for the Depository, duly executed by
the Issuer (and having an executed Note Guarantee from each of the Guarantors
endorsed thereon) and authenticated by the Trustee as hereinafter provided and
shall bear the legends set forth in EXHIBIT B.

          Notes offered and sold in offshore transactions in reliance on
Regulation S shall be issued initially in the form of a single permanent global
Note in registered form, substantially in the form of EXHIBIT A (the "REGULATION
S GLOBAL NOTE"), deposited with the Trustee, as custodian for the Depository,
duly executed by the Issuer (and having an executed Note Guarantee from each of
the Guarantors endorsed thereon) and authenticated by the Trustee as hereinafter
provided and shall bear the legends set forth in EXHIBIT B.

          The initial offer and resale of the Notes shall not be to an
Institutional Accredited Investor. The Notes resold to Institutional Accredited
Investors in connection with the first transfer made pursuant to Section 2.16(a)
shall be issued initially in the form of a single permanent Global Note in
registered form, substantially in the form set forth in EXHIBIT A (the "IAI
GLOBAL NOTE," and, together with the 144A Global Note and the Regulation S
Global Note, the "INITIAL GLOBAL NOTES"), deposited with the Trustee, as
custodian for the Depository, duly executed by the Issuer (and having an
executed Note Guarantee from each of the Guarantors endorsed thereon) and
authenticated by the Trustee as hereinafter provided and shall bear the legends
set forth in EXHIBIT B.

          Notes issued after the Issue Date shall be issued initially in the
form of one or more global Notes in registered form, substantially in the form
set forth in EXHIBIT A, deposited with the Trustee, as custodian for the
Depository, duly executed by the Issuer (and having an executed Note Guarantee
from each of the Guarantors endorsed thereon) and authenticated by the Trustee
as hereinafter provided and shall bear any legends required by applicable law
(together with the Initial Global Notes, the "GLOBAL NOTES").

          The aggregate principal amount of the Global Notes may from time to
time be increased or decreased by adjustments made on the records of the
Trustee, as custodian for the Depository, as hereinafter provided. Notes issued
in exchange for interests in a Global Note pursuant to Section 2.16 may be
issued in the form of permanent certificated Notes in registered form in
substantially the form set forth in EXHIBIT A and bearing the applicable
legends, if any, (the "PHYSICAL NOTES").

SECTION 2.02.    EXECUTION, AUTHENTICATION AND DENOMINATION; ADDITIONAL NOTES;
                 EXCHANGE NOTES

          One Officer of the Issuer (who shall have been duly authorized by all
requisite corporate actions) shall sign the Notes for such Issuer by manual or
facsimile signature. One Officer of each Guarantor (who shall have been duly
authorized by all requisite corporate actions) shall sign the Note Guarantee for
such Guarantor by manual or facsimile signature.

          If an Officer whose signature is on a Note or Note Guarantee, as the
case may be, was an Officer at the time of such execution but no longer holds
that office at the time the Trustee authenticates the Note, the Note shall
nevertheless be valid.

          A Note (and the Guarantees in respect thereof) shall not be valid
until an authorized signatory of the Trustee manually signs the certificate of
authentication on the Note. The signature shall be conclusive evidence that the
Note has been authenticated under this Indenture.

                                      -28-
<Page>

          The Trustee shall authenticate (i) on the Issue Date, Notes for
original issue in an unlimited amount (so long as not otherwise prohibited by
the terms of this Indenture, including, without limitation, Section 4.08) not to
exceed $150,000,000 (the "INITIAL NOTES"), (ii) additional Notes (the
"ADDITIONAL NOTES") and (iii) Exchange Notes or Private Exchange Notes (x) in
exchange for a like principal amount of Initial Notes or (y) in exchange for a
like principal amount of Additional Notes in each case upon a written order of
the Issuer in the form of a certificate of an Officer of the Issuer (an
"AUTHENTICATION ORDER"). Each such Authentication Order shall specify the amount
of Notes to be authenticated and the date on which the Notes are to be
authenticated, whether the Notes are to be Initial Notes, Exchange Notes,
Private Exchange Notes or Additional Notes and whether the Notes are to be
issued as certificated Notes or Global Notes or such other information as the
Trustee may reasonably request. In addition, with respect to authentication
pursuant to clause (ii) or (iii) of the first sentence of this paragraph, such
Authentication Order from the Issuer shall be accompanied by an Opinion of
Counsel of the Issuer in a form reasonably satisfactory to the Trustee.

          All Notes issued under this Indenture shall be treated as a single
class for all purposes under this Indenture. The Additional Notes and the
Private Exchange Notes shall bear any legend required by applicable law.

          The Trustee may appoint an authenticating agent reasonably acceptable
to the Issuer to authenticate Notes. Unless otherwise provided in the
appointment, an authenticating agent may authenticate Notes whenever the Trustee
may do so. Each reference in this Indenture to authentication by the Trustee
includes authentication by such agent. An authenticating agent has the same
rights as an Agent to deal with the Issuer and Affiliates of the Issuer. The
Trustee shall have the right to decline to authenticate and deliver any Notes
under this Indenture if the Trustee, being advised by counsel, determines that
such action may not lawfully be taken or if the Trustee in good faith shall
determine that such action would expose the Trustee to personal liability.

          The Notes shall be issuable only in registered form without coupons in
denominations of $1,000 and integral multiples thereof.

SECTION 2.03.    REGISTRAR AND PAYING AGENT.

          The Issuer shall maintain or cause to be maintained an office or
agency in the Borough of Manhattan, The City of New York, where (a) Notes may be
presented or surrendered for registration of transfer or for exchange
("REGISTRAR"), (b) Notes may, subject to Section 2 of the Notes, be presented or
surrendered for payment ("PAYING AGENT") and (c) notices and demands to or upon
the Issuer in respect of the Notes and this Indenture may be served. The Issuer
may also from time to time designate one or more other offices or agencies where
the Notes may be presented or surrendered for any or all such purposes and may
from time to time rescind such designations; PROVIDED, HOWEVER, that no such
designation or rescission shall in any manner relieve the Issuer of its
obligation to maintain or cause to be maintained an office or agency in the
Borough of Manhattan, The City of New York, for such purposes. The Issuer may
act as Registrar or Paying Agent, except that for the purposes of Articles Three
and Eight and Sections 4.07 and 4.11, neither the Issuer nor any Affiliate of
the Issuer shall act as Paying Agent. The Registrar shall keep a register of the
Notes and of their transfer and exchange. The Issuer, upon notice to the
Trustee, may have one or more co-registrars and one or more additional paying
agents reasonably acceptable to the Trustee. The term "Registrar" includes any
co-registrar and the term "Paying Agent" includes any additional paying agent.
The Issuer initially appoints the Trustee as Registrar and Paying Agent until
such time as the Trustee has resigned or a successor has been appointed and the
Trustee hereby agrees to so initially act.

                                      -29-
<Page>

          The Issuer shall enter into an appropriate agency agreement with any
Agent not a party to this Indenture, which agreement shall implement the
provisions of this Indenture that relate to such Agent. The Issuer shall notify
the Trustee, in advance, of the name and address of any such Agent. If the
Issuer fails to maintain a Registrar or Paying Agent, the Trustee shall act as
such.

SECTION 2.04.    PAYING AGENT TO HOLD ASSETS IN TRUST.

          The Issuer shall require each Paying Agent other than the Trustee or
the Issuer or any Subsidiary to agree in writing that, subject to Article Ten
and Section 11.02, each Paying Agent shall hold in trust for the benefit of
Holders or the Trustee all assets held by the Paying Agent for the payment of
principal of, or interest on, the Notes (whether such assets have been
distributed to it by the Issuer or any other obligor on the Notes), and shall
notify the Trustee of any Default by the Issuer (or any other obligor on the
Notes) in making any such payment. The Issuer at any time may require a Paying
Agent to distribute all assets held by it to the Trustee and account for any
assets disbursed and the Trustee may at any time during the continuance of any
payment Default, upon written request to a Paying Agent, require such Paying
Agent to distribute all assets held by it to the Trustee and to account for any
assets distributed. Upon distribution to the Trustee of all assets that shall
have been delivered by the Issuer to the Paying Agent, the Paying Agent shall
have no further liability for such assets.

SECTION 2.05.    HOLDER LISTS.

          The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Holders. If the Trustee is not the Registrar, the Issuer shall furnish to the
Trustee at least two Business Days prior to each Interest Payment Date and at
such other times as the Trustee may request in writing a list, in such form and
as of such date as the Trustee may reasonably require, of the names and
addresses of Holders, which list may be conclusively relied upon by the Trustee.

SECTION 2.06.    TRANSFER AND EXCHANGE.

          Subject to Sections 2.15 and 2.16, when Notes are presented to the
Registrar with a request to register the transfer of such Notes or to exchange
such Notes for an equal principal amount of Notes of other authorized
denominations, the Registrar shall register the transfer or make the exchange as
requested if its requirements for such transaction are met; PROVIDED, HOWEVER,
that the Notes surrendered for transfer or exchange shall be duly endorsed or
accompanied by a written instrument of transfer in form satisfactory to the
Issuer and the Registrar, duly executed by the Holder thereof or his or her
attorney duly authorized in writing. To permit registrations of transfers and
exchanges, the Issuer shall execute and the Trustee shall authenticate Notes at
the Registrar's request. No service charge shall be made for any registration of
transfer or exchange, but the Issuer may require payment of a sum sufficient to
cover any transfer tax or similar governmental charge payable in connection
therewith.

          Without the prior written consent of the Issuer, the Registrar shall
not be required to register the transfer of or exchange of any Note (i) during a
period beginning at the opening of business 15 days before the mailing of a
notice of redemption of Notes and ending at the close of business on the day of
such mailing, (ii) selected for redemption in whole or in part pursuant to
Article Three, except the unredeemed portion of any Note being redeemed in part,
and (iii) beginning at the opening of business on any Record Date and ending on
the close of business on the related Interest Payment Date.

          Any Holder of a beneficial interest in a Global Note shall, by
acceptance of such beneficial interest, agree that transfers of beneficial
interests in such Global Notes may be effected only through

                                      -30-
<Page>

a book-entry system maintained by the Holder of such Global Note (or its agent)
in accordance with the applicable legends thereon, and that ownership of a
beneficial interest in the Note shall be required to be reflected in a
book-entry system.

SECTION 2.07.    REPLACEMENT NOTES.

          If a mutilated Note is surrendered to the Trustee or if the Holder of
a Note claims that the Note has been lost, destroyed or wrongfully taken, the
Issuer shall issue and the Trustee shall authenticate a replacement Note if the
Trustee's requirements are met. Such Holder must provide an indemnity bond or
other indemnity, sufficient in the judgment of both the Issuer and the Trustee,
to protect the Issuer, the Trustee or any Agent from any loss which any of them
may suffer if a Note is replaced. The Issuer may charge such Holder for its
reasonable out-of-pocket expenses in replacing a Note pursuant to this Section
2.07, including reasonable fees and expenses of counsel and of the Trustee.

          Every replacement Note is an additional obligation of the Issuer and
every replacement Note Guarantee shall constitute an additional obligation of
the Guarantor thereof.

          The provisions of this Section 2.07 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement or payment of lost, destroyed or wrongfully taken Notes.

SECTION 2.08.    OUTSTANDING NOTES.

          Notes outstanding at any time are all the Notes that have been
authenticated by the Trustee except those cancelled by it, those delivered to it
for cancellation and those described in this Section 2.08 as not outstanding. A
Note does not cease to be outstanding because the Issuer, the Guarantors or any
of their respective Affiliates hold the Note (subject to the provisions of
Section 2.09).

          If a Note is replaced pursuant to Section 2.07 (other than a mutilated
Note surrendered for replacement), it ceases to be outstanding unless a
Responsible Officer of the Trustee receives proof satisfactory to it that the
replaced Note is held by a BONA FIDE purchaser. A mutilated Note ceases to be
outstanding upon surrender of such Note and replacement thereof pursuant to
Section 2.07.

          If the principal amount of any Note is considered paid under Section
4.01, it ceases to be outstanding and interest ceases to accrue. If on a
Redemption Date or the Maturity Date the Trustee or Paying Agent (other than the
Issuer or an Affiliate thereof) holds U.S. Legal Tender or U.S. Government
Obligations sufficient to pay all of the principal and interest due on the Notes
payable on that date, then on and after that date such Notes cease to be
outstanding and interest on them ceases to accrue.

SECTION 2.09.    TREASURY NOTES.

          In determining whether the Holders of the required principal amount of
Notes have concurred in any direction, waiver or consent, Notes owned by the
Issuer or any of its Affiliates shall be disregarded, except that, for the
purposes of determining whether the Trustee shall be protected in relying on any
such direction, waiver or consent, only Notes that a Responsible Officer of the
Trustee actually knows are so owned shall be disregarded.

                                      -31-
<Page>

SECTION 2.10.    TEMPORARY NOTES.

          Until definitive Notes are ready for delivery, the Issuer may prepare
and the Trustee shall authenticate temporary Notes. Temporary Notes shall be
substantially in the form of definitive Notes but may have variations that the
Issuer considers appropriate for temporary Notes. Without unreasonable delay,
the Issuer shall prepare and the Trustee shall authenticate definitive Notes in
exchange for temporary Notes. Until such exchange, temporary Notes shall be
entitled to the same rights, benefits and privileges as definitive Notes.
Notwithstanding the foregoing, so long as the Notes are represented by a Global
Note, such Global Note may be in typewritten form.

SECTION 2.11.    CANCELLATION.

          The Issuer at any time may deliver Notes to the Trustee for
cancellation. The Registrar and the Paying Agent shall forward to the Trustee
any Notes surrendered to them for transfer, exchange or payment. The Trustee, or
at the direction of the Trustee, the Registrar or the Paying Agent (other than
the Issuer or a Subsidiary), and no one else, shall cancel and, at the written
direction of the Issuer, shall dispose of all Notes surrendered for transfer,
exchange, payment or cancellation in accordance with its customary procedures.
Certification of the destruction of all cancelled Notes shall be delivered to
the Issuer upon request by the Issuer. Subject to Section 2.07, the Issuer may
not issue new Notes to replace Notes that it has paid or delivered to the
Trustee for cancellation. If the Issuer or any Guarantor shall acquire any of
the Notes, such acquisition shall not operate as a redemption or satisfaction of
the Indebtedness represented by such Notes unless and until the same are
surrendered to the Trustee for cancellation pursuant to this Section 2.11.

SECTION 2.12.    DEFAULTED INTEREST.

          If the Issuer defaults in a payment of interest on the Notes, it shall
pay the defaulted interest, plus (to the extent lawful) any interest payable on
the defaulted interest, in any lawful manner. The Issuer may pay the defaulted
interest to the persons who are Holders on a subsequent special record date,
which date shall be the fifteenth day next preceding the date fixed by the
Issuer for the payment of defaulted interest or the next succeeding Business Day
if such date is not a Business Day. At least 15 days before any such subsequent
special record date, the Issuer (or, upon the written request of the Issuer, the
Trustee in the name and at the expense of the Issuer) shall mail to each Holder,
with a copy to the Trustee, a notice that states the subsequent special record
date, the payment date and the amount of defaulted interest, and interest
payable on such defaulted interest, if any, to be paid.

SECTION 2.13.    CUSIP AND ISIN NUMBERS.

          The Issuer in issuing the Notes may use "CUSIP" or "ISIN" numbers, and
if so, the Trustee shall use the "CUSIP" or "ISIN" numbers in notices of
redemption or exchange as a convenience to Holders; PROVIDED, HOWEVER, that any
such notice may state that no representation is made as to the correctness or
accuracy of the "CUSIP" or "ISIN" numbers printed in the notice or on the Notes,
and that reliance may be placed only on the other identification numbers printed
on the Notes. The Issuer will promptly notify the Trustee of any change in the
"CUSIP" or "ISIN" numbers.

SECTION 2.14.    DEPOSIT OF MONEYS.

          Subject to Section 2 of the Notes, prior to 10:00 a.m. New York City
time on each Interest Payment Date, Maturity Date, Redemption Date, Change of
Control Payment Date and Net Proceeds Payment Date, the Issuer shall have
deposited with the Paying Agent in immediately available funds

                                      -32-
<Page>

money sufficient to make cash payments, if any, due on such Interest Payment
Date, Maturity Date, Redemption Date, Change of Control Payment Date and Net
Proceeds Payment Date, as the case may be, in a timely manner which permits the
Paying Agent to remit payment to the Holders on such Interest Payment Date,
Maturity Date, Redemption Date, Change of Control Payment Date and Net Proceeds
Payment Date, as the case may be.

SECTION 2.15.    BOOK-ENTRY PROVISIONS FOR GLOBAL NOTES.

          (a)    The Global Notes initially shall (i) be registered in the name
of the Depository or the nominee of such Depository, (ii) be delivered to the
Trustee as custodian for such Depository and (iii) bear legends as set forth in
EXHIBIT B, as applicable.

          Members of, or participants in, the Depository ("PARTICIPANTS") shall
have no rights under this Indenture with respect to any Global Note held on
their behalf by the Depository, or the Trustee as its custodian, or under the
Global Note, and the Depository may be treated by the Issuer, the Trustee and
any agent of the Issuer or the Trustee as the absolute owner of the Global Note
for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall
prevent the Issuer, the Trustee or any agent of the Issuer or the Trustee from
giving effect to any written certification, proxy or other authorization
furnished by the Depository or impair, as between the Depository and
Participants, the operation of customary practices governing the exercise of the
rights of a Holder of any Note.

          (b)    Transfers of Global Notes shall be limited to transfers in
whole, but not in part, to the Depository, its successors or their respective
nominees. Interests of beneficial owners in the Global Notes may be transferred
or exchanged for Physical Notes in accordance with the rules and procedures of
the Depository and the provisions of Section 2.16. In addition, Physical Notes
shall be transferred to all beneficial owners in exchange for their beneficial
interests in Global Notes if (i) the Depository notifies the Issuer that it is
unwilling or unable to act as Depository for any Global Note, the Issuer so
notifies the Trustee in writing and a successor Depository is not appointed by
the Issuer within 90 days of such notice, (ii) the Issuer, at its option,
notifies the Trustee in writing that it elects to cause the issuance of the
Notes in the form of Physical Notes under this Indenture, or (iii) a Default or
Event of Default has occurred and is continuing and the Registrar has received a
written request from any owner of a beneficial interest in a Global Note to
issue Physical Notes. Upon any issuance of a Physical Note in accordance with
this Section 2.15(b) the Trustee is required to register such Physical Note in
the name of, and cause the same to be delivered to, such person or persons (or
the nominee of any thereof). All such Physical Notes shall bear the applicable
legends, if any.

          (c)    In connection with any transfer or exchange of a portion of the
beneficial interest in a Global Note to beneficial owners pursuant to paragraph
(b) of this Section 2.15, the Registrar shall (if one or more Physical Notes are
to be issued) reflect on its books and records the date and a decrease in the
principal amount of such Global Note in an amount equal to the principal amount
of the beneficial interest in the Global Note to be transferred, and the Issuer
shall execute, and the Trustee shall authenticate and deliver, one or more
Physical Notes of authorized denominations in an aggregate principal amount
equal to the principal amount of the beneficial interest in the Global Note so
transferred.

          (d)   In connection with the transfer of a Global Note as an entirety
to beneficial owners pursuant to paragraph (b) of this Section 2.15, such Global
Note shall be deemed to be surrendered to the Trustee for cancellation, and (i)
the Issuer shall execute, (ii) the Guarantors shall execute notations of Note
Guarantees on and (iii) the Trustee shall upon written instructions from the
Issuer authenticate and deliver, to each beneficial owner identified by the
Depository in exchange for its beneficial interest in such Global Note, an equal
aggregate principal amount of Physical Notes of authorized denominations.

                                      -33-
<Page>

          (e)    Any Physical Note constituting a Restricted Security delivered
in exchange for an interest in a Global Note pursuant to paragraph (b) or (c) of
this Section 2.15 shall, except as otherwise provided by Section 2.16, bear the
Private Placement Legend.

          (f)    The Holder of any Global Note may grant proxies and otherwise
authorize any Person, including Participants and Persons that may hold interests
through Participants, to take any action which a Holder is entitled to take
under this Indenture or the Notes.

SECTION 2.16.    SPECIAL TRANSFER AND EXCHANGE PROVISIONS.

          (a)    TRANSFERS TO NON-QIB INSTITUTIONAL ACCREDITED INVESTORS. The
following provisions shall apply with respect to the registration of any
proposed transfer of a Restricted Security to any Institutional Accredited
Investor which is not a QIB:

          (i)    the Registrar shall register the transfer of any Restricted
     Security, whether or not such Note bears the Private Placement Legend, if
     (x) the requested transfer is after the second anniversary of the Issue
     Date; PROVIDED, HOWEVER, that neither the Issuer nor any Affiliate of the
     Issuer has held any beneficial interest in such Note, or portion thereof,
     at any time on or prior to the second anniversary of the Issue Date or (y)
     the proposed transferee has delivered to the Registrar a certificate
     substantially in the form of EXHIBIT C hereto and any legal opinions and
     certifications as may be reasonably requested by the Trustee and the
     Issuer;

          (ii)   if the proposed transferee is a Participant and the Notes to be
     transferred consist of Physical Notes which after transfer are to be
     evidenced by an interest in the IAI Global Note, upon receipt by the
     Registrar of the Physical Note and (x) written instructions given in
     accordance with the Depository's and the Registrar's procedures and (y) the
     certificate, if required, referred to in clause (y) of paragraph (i) above
     (and any legal opinion or other certifications), the Registrar shall
     register the transfer and reflect on its books and records the date and an
     increase in the principal amount of the IAI Global Note in an amount equal
     to the principal amount of Physical Notes to be transferred, and the
     Registrar shall cancel the Physical Notes so transferred; and

          (iii)  if the proposed transferor is a Participant seeking to transfer
     an interest in a Global Note, upon receipt by the Registrar of (x) written
     instructions given in accordance with the Depository's and the Registrar's
     procedures and (y) the certificate, if required, referred to in clause (y)
     of paragraph (i) above, the Registrar shall register the transfer and
     reflect on its books and records the date and (A) a decrease in the
     principal amount of the Global Note from which such interests are to be
     transferred in an amount equal to the principal amount of the Notes to be
     transferred and (B) an increase in the principal amount of the IAI Global
     Note in an amount equal to the principal amount of the Notes to be
     transferred.

          (b)    TRANSFERS TO QIBs. The following provisions shall apply with
respect to the registration of any proposed transfer of a Restricted Security to
a QIB:

          (i)    the Registrar shall register the transfer of any Restricted
     Security, whether or not such Note bears the Private Placement Legend, if
     (x) the requested transfer is after the second anniversary of the Issue
     Date; PROVIDED, HOWEVER, that neither the Issuer nor any Affiliate of the
     Issuer has held any beneficial interest in such Note, or portion thereof,
     at any time on or prior to the second anniversary of the Issue Date or (y)
     such transfer is being made by a proposed transferor who has checked the
     box provided for on the applicable Global Note stating, or has otherwise
     advised the Issuer and the Registrar in writing, that the sale has been
     made in compliance with the

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     provisions of Rule 144A to a transferee who has signed the certification
     provided for on the applicable Global Note stating, or has otherwise
     advised the Issuer and the Registrar in writing, that it is purchasing the
     Note for its own account or an account with respect to which it exercises
     sole investment discretion and that it and any such account is a QIB within
     the meaning of Rule 144A, and is aware that the sale to it is being made in
     reliance on Rule 144A and acknowledges that it has received such
     information regarding the Issuer as it has requested pursuant to Rule 144A
     or has determined not to request such information and that it is aware that
     the transferor is relying upon its foregoing representations in order to
     claim the exemption from registration provided by Rule 144A;

          (ii)   if the proposed transferee is a Participant and the Notes to be
     transferred consist of Physical Notes which after transfer are to be
     evidenced by an interest in the 144A Global Note, upon receipt by the
     Registrar of the Physical Note and written instructions given in accordance
     with the Depository's and the Registrar's procedures, the Registrar shall
     register the transfer and reflect on its book and records the date and an
     increase in the principal amount of the 144A Global Note in an amount equal
     to the principal amount of Physical Notes to be transferred, and the
     Registrar shall cancel the Physical Notes so transferred; and

          (iii)  if the proposed transferor is a Participant seeking to transfer
     an interest in the IAI Global Note or the Regulation S Global Note, upon
     receipt by the Registrar of written instructions given in accordance with
     the Depository's and the Registrar's procedures, the Registrar shall
     register the transfer and reflect on its books and records the date and (A)
     a decrease in the principal amount of the IAI Global Note or the Regulation
     S Global Note, as the case may be, in an amount equal to the principal
     amount of the Notes to be transferred and (B) an increase in the principal
     amount of the 144A Global Note in an amount equal to the principal amount
     of the Notes to be transferred.

          (c)    TRANSFERS TO NON-U.S. PERSONS. The following provisions shall
apply with respect to any transfer of a Restricted Security to a Non-U.S. Person
under Regulation S:

          (i)    the Registrar shall register any proposed transfer of a
     Restricted Security to a Non-U.S. Person upon receipt of a certificate
     substantially in the form of EXHIBIT D from the proposed transferor and
     such certifications, legal opinions and other information as the Trustee or
     the Issuer may reasonably request; and

          (ii)   (a) if the proposed transferor is a Participant holding a
     beneficial interest in the Rule 144A Global Note or the IAI Global Note or
     the Note to be transferred consists of Physical Notes, upon receipt by the
     Registrar of (x) the documents required by paragraph (i) and (y)
     instructions in accordance with the Depository's and the Registrar's
     procedures, the Registrar shall reflect on its books and records the date
     and a decrease in the principal amount of the Rule 144A Global Note or the
     IAI Global Note, as the case may be, in an amount equal to the principal
     amount of the beneficial interest in the Rule 144A Global Note or the IAI
     Global Note, as the case may be, to be transferred or cancel the Physical
     Notes to be transferred, and (b) if the proposed transferee is a
     Participant, upon receipt by the Registrar of instructions given in
     accordance with the Depository's and the Registrar's procedures, the
     Registrar shall reflect on its books and records the date and an increase
     in the principal amount of the Regulation S Global Note in an amount equal
     to the principal amount of the Rule 144A Global Note, the IAI Global Note
     or the Physical Notes, as the case may be, to be transferred.

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          (d)    EXCHANGE OFFER. Upon the occurrence of the Exchange Offer in
accordance with the Registration Rights Agreement, the Issuer shall issue and,
upon receipt of an Authentication Order in accordance with Section 2.02, the
Trustee shall authenticate one or more Global Notes not bearing the Private
Placement Legend in an aggregate principal amount equal to the principal amount
of the beneficial interests in the Initial Global Notes tendered for acceptance
by Persons that certify in the applicable Letters of Transmittal that (x) they
are not broker-dealers, (y) they are not participating in a distribution of the
Exchange Notes and (z) they are not affiliates (as defined in Rule 144) of the
Issuer, and accepted for exchange in the Exchange Offer.

          (e)    RESTRICTIONS ON TRANSFER AND EXCHANGE OF GLOBAL NOTES.
Notwithstanding any other provisions of this Indenture, a Global Note may not be
transferred as a whole except by the Depository to a nominee of the Depository
or by a nominee of the Depository to the Depository or another nominee of the
Depository or by the Depository or any such nominee to a successor Depository or
a nominee of such successor Depository.

          (f)    PRIVATE PLACEMENT LEGEND. Upon the transfer, exchange or
replacement of Notes not bearing the Private Placement Legend unless otherwise
required by applicable law, the Registrar shall deliver Notes that do not bear
the Private Placement Legend. Upon the transfer, exchange or replacement of
Notes bearing the Private Placement Legend, the Registrar shall deliver only
Notes that bear the Private Placement Legend unless (i) there is delivered to
the Trustee an Opinion of Counsel reasonably satisfactory to the Issuer and the
Trustee to the effect that neither such legend nor the related restrictions on
transfer are required in order to maintain compliance with the provisions of the
Securities Act or (ii) such Note has been offered and sold (including pursuant
to the Exchange Offer) pursuant to an effective registration statement under the
Securities Act.

          (g)    GENERAL. By its acceptance of any Note bearing the Private
Placement Legend, each Holder of such a Note acknowledges the restrictions on
transfer of such Note set forth in this Indenture and in the Private Placement
Legend and agrees that it will transfer such Note only as provided in this
Indenture.

          The Registrar shall retain copies of all letters, notices and other
written communications received pursuant to Section 2.15 or Section 2.16. The
Issuer shall have the right to inspect and make copies of all such letters,
notices or other written communications at any reasonable time upon the giving
of reasonable written notice to the Registrar.

          The Trustee shall have no obligation or duty to monitor, determine or
inquire as to compliance with any restrictions on transfer imposed under this
Indenture or under applicable law with respect to any transfer of any interest
in any Note (including any transfers between or among Participants or beneficial
owners of interests in any Global Note) other than to require delivery of such
certificates and other documentation or evidence as are expressly required by,
and to do so if and when expressly required by the terms of, this Indenture, and
to examine the same to determine substantial compliance as to form with the
express requirements hereof.

          The Trustee shall have no responsibility for the actions or omissions
of the Depository, or the accuracy of the books and records of the Depository.

          (h)    CANCELLATION AND/OR ADJUSTMENT OF GLOBAL NOTE. At such time as
all beneficial interests in a particular Global Note have been exchanged for
Physical Notes or a particular Global Note has been redeemed, repurchased or
canceled in whole and not in part, each such Global Note shall be returned to or
retained and canceled by the Trustee in accordance with Section 2.11 hereof. At
any time

                                      -36-
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prior to such cancellation, if any beneficial interest in a Global Note is
exchanged for or transferred to a Person who will take delivery thereof in the
form of a beneficial interest in another Global Note or for Physical Notes, the
principal amount of Notes represented by such Global Note shall be reduced
accordingly and an endorsement shall be made on such Global Note by the Trustee
or by the Depositary at the direction of the Trustee to reflect such reduction;
and if the beneficial interest is being exchanged for or transferred to a Person
who will take delivery thereof in the form of a beneficial interest in another
Global Note, such other Global Note shall be increased accordingly and an
endorsement shall be made on such Global Note by the Trustee or by the
Depositary at the direction of the Trustee to reflect such increase.

                                  ARTICLE THREE

                                   REDEMPTION

SECTION 3.01.    NOTICES TO TRUSTEE.

          If the Issuer elects to redeem Notes pursuant to Section 5 or Section
6 of the Notes, it shall notify the Trustee in writing of the Redemption Date,
the Redemption Price and the principal amount of Notes to be redeemed. The
Issuer shall give notice of redemption to the Trustee at least 45 days but not
more than 60 days before the Redemption Date (unless a shorter notice shall be
agreed to by the Trustee in writing), together with such documentation and
records as shall enable the Trustee to select the Notes to be redeemed.

SECTION 3.02.    SELECTION OF NOTES TO BE REDEEMED.

          If less than all of the Notes are to be redeemed at any time pursuant
to Sections 5 and 6 of the Notes, the Trustee will select Notes for redemption
as follows:

          (x)    if the Notes are listed on a national securities exchange, in
                 compliance with the requirements of the principal national
                 securities exchange on which the Notes are listed; or

          (y)    if the Notes are not so listed, on a PRO RATA basis, by lot or
                 by such method as the Trustee shall deem fair and appropriate;

PROVIDED, HOWEVER, that, in the case of such redemption pursuant to Section 6 of
the Notes, the Trustee will select the Notes on a PRO RATA basis or on as nearly
a PRO RATA basis as practicable (subject to the procedures of the Depository)
unless that method is otherwise prohibited.

          The Trustee shall promptly notify the Issuer in writing of the Notes
selected for redemption and, in the case of any Note selected for partial
redemption, the principal amount thereof to be redeemed. Notes and portions of
Notes selected shall be in the amounts of $1,000 or integral multiples of
$1,000, except that if all of the Notes of a Holder are to be redeemed, the
entire outstanding amount of the Notes held by such Holder, even if not an
integral multiple of $1,000, shall be redeemed. Except as provided in the
preceding sentence, provisions of this Indenture that apply to the Notes called
for redemption also apply to portions of Notes called for redemption.

SECTION 3.03.    NOTICE OF REDEMPTION.

          At least 30 days but not more than 60 days before a Redemption Date,
the Issuer shall mail, or cause to be mailed, a notice of redemption by first
class mail, postage prepaid, to each Holder

                                      -37-
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whose Notes are to be redeemed at its registered address (except that a notice
issued in connection with a redemption referred to in Section 8.01 may be more
than 60 days before such Redemption Date). At the Issuer's request, the Trustee
shall forward the notice of redemption in the Issuer's name and at the Issuer's
expense. Each notice for redemption shall identify the Notes (including the
CUSIP or ISIN number) to be redeemed and shall state:

          (1)    the Redemption Date;

          (2)    the Redemption Price and the amount of accrued interest, if
     any, to be paid;

          (3)    the name and address of the Paying Agent;

          (4)    that Notes called for redemption must be surrendered to the
     Paying Agent to collect the Redemption Price plus accrued interest, if any;

          (5)    that, unless the Issuer defaults in making the redemption
     payment, interest on Notes called for redemption ceases to accrue on and
     after the Redemption Date, and the only remaining right of the Holders of
     such Notes is to receive payment of the Redemption Price upon surrender to
     the Paying Agent of the Notes redeemed;

          (6)    if any Note is being redeemed in part, the portion of the
     principal amount of such Note to be redeemed and that, after the Redemption
     Date, and upon surrender and cancellation of such Note, a new Note or Notes
     in aggregate principal amount equal to the unredeemed portion thereof will
     be issued;

          (7)    if fewer than all the Notes are to be redeemed, the
     identification of the particular Notes (or portion thereof) to be redeemed,
     as well as the aggregate principal amount of Notes to be redeemed and the
     aggregate principal amount of Notes to be outstanding after such partial
     redemption; and

          (8)    the Section of the Notes or the Indenture, as applicable,
     pursuant to which the Notes are to be redeemed.

          The notice, if mailed in a manner herein provided, shall be
conclusively presumed to have been given, whether or not the Holder receives
such notice. In any case, failure to give such notice by mail or any defect in
the notice to the Holder of any Note designated for redemption in whole or in
part shall not affect the validity of the proceedings for the redemption of any
other Note. Notices of redemption may not be conditional.

          At the Issuer's request, the Trustee shall give the notice of
redemption in the Issuer's name and at its expense; PROVIDED, HOWEVER, that the
Issuer shall have delivered to the Trustee, at least 45 days (or such shorter
period allowed by the Trustee) prior to the redemption date, an Officers'
Certificate requesting that the Trustee give such notice (in the name and at the
expense of the Issuer) and setting forth the information to be stated in such
notice as provided in this Section 3.03.

SECTION 3.04.    EFFECT OF NOTICE OF REDEMPTION.

          Once notice of redemption is mailed in accordance with Section 3.03,
Notes called for redemption become due and payable on the Redemption Date and at
the Redemption Price plus accrued interest, if any. Upon surrender to the
Trustee or Paying Agent, such Notes called for redemption shall be

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paid at the Redemption Price (which shall include accrued interest thereon to,
but not including, the Redemption Date), but installments of interest, the
maturity of which is on or prior to the Redemption Date, shall be payable to
Holders of record at the close of business on the relevant Record Dates. On and
after the Redemption Date interest shall cease to accrue on Notes or portions
thereof called for redemption unless the Issuer shall have not complied with its
obligations pursuant to Section 3.05.

SECTION 3.05.    DEPOSIT OF REDEMPTION PRICE.

          On or before 10:00 a.m. New York time on the Redemption Date, the
Issuer shall deposit with the Paying Agent U.S. Legal Tender sufficient to pay
the Redemption Price plus accrued and unpaid interest, if any, of all Notes to
be redeemed on that date.

          If the Issuer complies with the preceding paragraph, then, unless the
Issuer defaults in the payment of such Redemption Price plus accrued interest,
if any, interest on the Notes to be redeemed will cease to accrue on and after
the applicable Redemption Date, whether or not such Notes are presented for
payment.

SECTION 3.06.    NOTES REDEEMED IN PART.

          If any Note is to be redeemed in part only, the notice of redemption
that relates to such Note shall state the portion of the principal amount
thereof to be redeemed. A new Note or Notes in principal amount equal to the
unredeemed portion of the original Note or Notes shall be issued in the name of
the Holder thereof upon surrender and cancellation of the original Note or
Notes.

                                  ARTICLE FOUR

                                    COVENANTS

SECTION 4.01.    PAYMENT OF NOTES.

          The Issuer shall pay or cause to be paid the principal of (and
premium, if any) and interest on the Notes in the manner provided in the Notes,
the Registration Rights Agreement and this Indenture. An installment of
principal of, or interest on, the Notes shall be considered paid on the date it
is due if the Trustee or Paying Agent (other than the Issuer or an Affiliate
thereof) holds on that date U.S. Legal Tender designated for and sufficient to
pay the installment. The Paying Agent shall return to the Issuer promptly, and
in any event, no later than five (5) Business Days following the date of
payment, any money (including accrued interest) that exceeds such amount of
principal, premium, if any, and interest paid on the Notes. If a payment date is
not a Business Day, at a place of payment, payment may be made at that place on
the next succeeding day that is a Business Day, and no interest shall accrue on
such payment for the intervening period.

          The Issuer shall pay interest (including, without limitation, post
petition interest in a proceeding under any Bankruptcy Law), on overdue
principal and premium, if any, and overdue interest (without regard to
applicable grace periods), to the extent lawful, at the same rate PER ANNUM
borne by the Notes.

          Interest on the Notes will be computed on the basis of a 360-day year
comprised of twelve 30-day months.

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SECTION 4.02.    MAINTENANCE OF OFFICE OR AGENCY.

          The Issuer shall maintain in the Borough of Manhattan, The City of New
York, the office or agency required under Section 2.03 (which may be an office
or drop facility of the Trustee or an affiliate of the Trustee or Registrar).
The Issuer shall give prompt written notice to the Trustee of the location, and
any change in the location, of such office or agency. If at any time the Issuer
shall fail to maintain any such required office or agency or shall fail to
furnish the Trustee with the address thereof, such presentations, surrenders,
notices and demands may be made or served at the address of the Trustee set
forth in Section 12.02 and the Issuer hereby appoints the Trustee as its agent
to receive all such presentations, surrenders, notices and demands.

          The Issuer may also from time to time designate one or more other
offices or agencies where the Notes may be presented or surrendered for any or
all such purposes and may from time to time rescind such designations. The
Issuer will give prompt written notice to the Trustee of any such designation or
rescission and of any change in the location of any such other office or agency.

          The Issuer hereby initially designates U.S. Bank Trust National
Association, located at 100 Wall Street, Suite 1600, New York, New York 10005,
as such office of the Issuer in accordance with Section 2.03.

SECTION 4.03.    CORPORATE EXISTENCE.

          Except as otherwise permitted by Article Five, the Issuer shall do or
cause to be done all things necessary to preserve and keep in full force and
effect its corporate existence and the corporate, partnership or other existence
of each of its Restricted Subsidiaries in accordance with the respective
organizational documents (as the same may be amended from time to time) of each
such Restricted Subsidiary and the material rights (charter and statutory) and
material franchises of the Issuer and each of its Restricted Subsidiaries;
PROVIDED, HOWEVER, that the Issuer shall not be required to preserve any such
right, franchise or corporate existence with respect to itself or any Restricted
Subsidiary if the Board of Directors shall determine that the preservation
thereof is no longer desirable in the conduct of the business of the Issuer and
its Restricted Subsidiaries, taken as a whole, and that the loss thereof is not
adverse in any material respect to the Holders of the Notes.

SECTION 4.04.    PAYMENT OF TAXES.

          The Issuer and the Guarantors shall, and shall cause each of the
Restricted Subsidiaries to, pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (a) all material taxes, assessments and
governmental charges levied or imposed upon it or any of the Restricted
Subsidiaries or upon the income, profits or property of it or any of the
Restricted Subsidiaries and (b) all lawful claims for labor, materials and
supplies which, in each case, if unpaid, might by law become a material
liability or Lien upon the property of it or any of the Restricted Subsidiaries;
PROVIDED, HOWEVER, that the Issuer and the Guarantors shall not be required to
pay or discharge or cause to be paid or discharged any such tax, assessment,
charge or claim whose amount the applicability or validity is being contested in
good faith by appropriate actions and for which appropriate provision has been
made.

SECTION 4.05.    COMPLIANCE CERTIFICATE; NOTICE OF DEFAULT.

          (a)    The Issuer shall deliver to the Trustee, within 120 days after
the close of each fiscal year, an Officers' Certificate stating that a review of
the activities of the Issuer and its Subsidiaries during the preceding fiscal
year has been made under the supervision of the signing Officers with a view

                                      -40-
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to determining whether the Issuer and the Guarantors have kept, observed,
performed and fulfilled their obligations under this Indenture and further
stating, as to each such Officer signing such certificate, that to the best of
such Officer's knowledge, the Issuer and the Guarantors during such preceding
fiscal year has kept, observed, performed and fulfilled each and every such
covenant contained in this Indenture and no Default occurred during such year
and at the date of such certificate there is no Default that has occurred and is
continuing or, if such signers do know of such Default, the certificate shall
specify such Default and what action, if any, the Issuer is taking or proposes
to take with respect thereto. The Officers' Certificate shall also notify the
Trustee should the Issuer elect to change the manner in which it fixes the
fiscal year end.

          (b)    The Issuer shall deliver to the Trustee promptly and in any
event within five days after the Issuer becomes aware of the occurrence of any
Default an Officers' Certificate specifying the Default and what action, if any,
the Issuer is taking or proposes to take with respect thereto.

SECTION 4.06.    WAIVER OF STAY, EXTENSION OR USURY LAWS.

          The Issuer and each Guarantor covenants (to the extent permitted by
applicable law) that it will not at any time insist upon, plead, or in any
manner whatsoever claim or take the benefit or advantage of, any stay or
extension law or any usury law or other law that would prohibit or forgive such
Issuer or such Guarantor from paying all or any portion of the principal of
and/or interest on the Notes or the Note Guarantee of any such Guarantor as
contemplated herein, wherever enacted, now or at any time hereafter in force, or
which may affect the covenants or the performance of this Indenture, and (to the
extent permitted by applicable law) each hereby expressly waives all benefit or
advantage of any such law, and covenants that it will not hinder, delay or
impede the execution of any power herein granted to the Trustee, but will suffer
and permit the execution of every such power as though no such law had been
enacted.

SECTION 4.07.    CHANGE OF CONTROL.

          (a)    Upon the occurrence of any Change of Control, each Holder of
Notes will have the right to require the Issuer to repurchase all or any part
(equal to $1,000 or an integral multiple thereof) of that Holder's Notes
pursuant to a Change of Control Offer (the "CHANGE OF CONTROL OFFER"). In the
Change of Control Offer, the Issuer will offer to pay an amount in cash (the
"CHANGE OF CONTROL PURCHASE PRICE") equal to 101% of the aggregate principal
amount of Notes purchased, plus accrued and unpaid interest thereon, if any, to
the date of purchase. Within 30 days following any Change of Control, the Issuer
will mail, or cause to be mailed, a notice to each Holder describing the
transaction or transactions that constitute the Change of Control and offering
to purchase Notes on the date (the "CHANGE OF CONTROL PAYMENT DATE") specified
in such notice, which date shall be a Business Day no earlier than 30 days and
no later than 60 days from the date such notice is mailed, pursuant to the
procedures described below. Such notice shall state:

          (1)    that the Change of Control Offer is being made pursuant to this
     Section 4.07 and that all Notes tendered and not withdrawn will be accepted
     for payment;

          (2)    the Change of Control Purchase Price and the Change of Control
     Payment Date;

          (3)    that any Note not tendered will continue to accrue interest;

                                      -41-
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          (4)    that, unless the Issuer defaults in making payment therefor,
     any Note accepted for payment pursuant to the Change of Control Offer shall
     cease to accrue interest after the Change of Control Payment Date;

          (5)    that Holders electing to have a Note purchased pursuant to a
     Change of Control Offer will be required to surrender the Note, with the
     form entitled "Option of Holder to Elect Purchase" on the reverse of the
     Note completed, to the Paying Agent at the address specified in the notice
     prior to the close of business on the third Business Day prior to the
     Change of Control Payment Date;

          (6)    that Holders will be entitled to withdraw their election if the
     Paying Agent receives, not later than the second Business Day prior to the
     Change of Control Payment Date, a telegram, facsimile transmission or
     letter setting forth the name of the Holder, the principal amount of the
     Notes the Holder delivered for purchase and a statement that such Holder is
     withdrawing his election to have such Note purchased;

          (7)    that Holders whose Notes are purchased only in part will be
     issued new Notes in a principal amount equal to the unpurchased portion of
     the Notes surrendered (equal to $1,000 or an integral multiple thereof);
     and

          (8)    the circumstances and relevant facts regarding such Change of
     Control.

          (b)    On or before the Change of Control Payment Date, the Issuer
will, to the extent lawful:

          (1)    accept for payment all Notes or portions thereof properly
     tendered pursuant to the Change of Control Offer;

          (2)    deposit with the Paying Agent U.S. Legal Tender sufficient to
     pay the Change of Control Purchase Price in respect of all Notes or
     portions thereof so tendered; and

          (3)    deliver or cause to be delivered to the Trustee the Notes so
     accepted together with an Officers' Certificate stating the aggregate
     principal amount of Notes or portions thereof being purchased by the
     Issuer.

          (c)    The Paying Agent will promptly mail to each Holder of Notes so
tendered the Change of Control Purchase Price for such Notes, and the Trustee
will promptly authenticate and mail (or cause to be transferred by book entry)
to each Holder a new Note equal in principal amount to any unpurchased portion
of the Notes surrendered, if any; PROVIDED, HOWEVER, that each such new Note
will be in a principal amount of $1,000 or an integral multiple thereof.

          (d)    The Issuer will publicly announce the results of the Change of
Control Offer on or as soon as practicable after the Change of Control Payment
Date.

          (e)    The Issuer will not be required to make a Change of Control
Offer upon a Change of Control if a third party makes the Change of Control
Offer in the manner, at the times and otherwise in compliance with the
requirements set forth in this Indenture applicable to a Change of Control Offer
made by the Issuer and purchases all Notes validly tendered and not withdrawn
under such Change of Control Offer.

                                      -42-
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          (f)    The Issuer shall cause the Change of Control Offer to remain
open for at least 20 Business Days or for such longer period as may be required
by law. The Issuer will comply, and will cause any third party making a Change
of Control Offer to comply, with the requirements of Rule 14e-1 under the
Exchange Act and any other securities laws and regulations thereunder to the
extent such laws and regulations are applicable in connection with a Change of
Control Offer. To the extent the provisions of any applicable securities laws or
regulations conflict with the provisions of this Section 4.07, the Issuer will
not be deemed to have breached their obligations under this Section 4.07 by
virtue of complying with such laws or regulations.

SECTION 4.08.    LIMITATIONS ON ADDITIONAL INDEBTEDNESS.

          (a)    The Issuer will not, and will not permit any Restricted
Subsidiary to, directly or indirectly, incur any Indebtedness; PROVIDED,
HOWEVER, that the Issuer or any Guarantor may incur additional Indebtedness and
any Restricted Subsidiary may incur Acquired Indebtedness if, after giving
effect thereto, the Consolidated Interest Coverage Ratio would be at least (a)
2.00 to 1.00 if the incurrence occurs on or prior to the third anniversary of
the Issue Date and (b) 2.25 to 1.00 if the incurrence occurs thereafter (the
"COVERAGE RATIO EXCEPTION").

          (b)    Notwithstanding Section 4.08(a), each of the following shall be
permitted (the "PERMITTED INDEBTEDNESS"):

          (1)    Indebtedness of the Issuer and any Restricted Subsidiary under
     the Credit Agreement in an aggregate amount at any time outstanding not to
     exceed the greater of (x) $75.0 million, LESS the aggregate amount of Net
     Available Proceeds applied to repayments under the Credit Agreement in
     accordance with Section 4.11 and (y) 85% of the book value of the accounts
     receivable plus 65% of the book value of inventory of the Issuer and the
     Restricted Subsidiaries, in each case calculated on a consolidated basis
     and in accordance with GAAP as of the last day of the last full fiscal
     quarter for which financial statements are available;

          (2)    the Notes issued on the Issue Date and the Note Guarantees and
     the Exchange Notes and the Note Guarantees in respect thereof to be issued
     pursuant to the Registration Rights Agreement;

          (3)    Indebtedness of the Issuer and the Restricted Subsidiaries to
     the extent outstanding on the Issue Date (other than Indebtedness referred
     to in clauses (1) and (2) above, and after giving effect to the intended
     use of proceeds of the Notes);

          (4)    Indebtedness under Hedging Obligations entered into in the
     ordinary course of business for BONA FIDE hedging purposes and not for the
     purpose of speculation that are designed to protect against fluctuations in
     interest rates, foreign currency exchange rates and commodity process;
     PROVIDED, HOWEVER, that if such Hedging Obligations are of the type
     described in clause (1) of the definition thereof, (a) such Hedging
     Obligations relate to payment obligations on Indebtedness otherwise
     permitted to be incurred by this covenant and (b) the notional principal
     amount of such Hedging Obligations at the time incurred does not exceed the
     principal amount of the Indebtedness to which such Hedging Obligations
     relate;

          (5)    Indebtedness of the Issuer owed to a Guarantor or a Foreign
     Restricted Subsidiary and Indebtedness of any Restricted Subsidiary owed to
     the Issuer, any Guarantor or any Foreign Restricted Subsidiary; PROVIDED,
     HOWEVER, that upon any such Restricted Subsidiary ceasing to be a
     Restricted Subsidiary or such Indebtedness being owed to any Person other
     than the Is-

                                      -43-
<Page>

     suer, a Guarantor or a Foreign Restricted Subsidiary, the Issuer or such
     Restricted Subsidiary, as applicable, shall be deemed to have incurred
     Indebtedness not permitted by this clause (5);

          (6)    Indebtedness in respect of bid, performance or surety bonds
     issued for the account of the Issuer, any Guarantor or any Foreign
     Restricted Subsidiary in the ordinary course of business, including
     guarantees or obligations of the Issuer, any Guarantor or any Foreign
     Restricted Subsidiary with respect to letters of credit supporting such
     bid, performance or surety obligations (in each case other than for an
     obligation for money borrowed);

          (7)    Purchase Money Indebtedness incurred by the Issuer, any
     Guarantor or any Foreign Restricted Subsidiary, and Refinancing
     Indebtedness thereof, in an aggregate amount not to exceed at any time
     outstanding $15.0 million;

          (8)    Indebtedness arising from the honoring by a bank or other
     financial institution of a check, draft or similar instrument inadvertently
     (except in the case of daylight overdrafts) drawn against insufficient
     funds in the ordinary course of business; PROVIDED, HOWEVER, that such
     Indebtedness is extinguished within five Business Days of incurrence;

          (9)    Indebtedness arising in connection with endorsement of
     instruments for deposit in the ordinary course of business;

         (10)    Refinancing Indebtedness incurred by the Issuer, any Guarantor
     or any other Restricted Subsidiary with respect to Indebtedness incurred
     pursuant to the Coverage Ratio Exception or clause (2) or clause (3) above;
     PROVIDED, HOWEVER, that in the case of a Restricted Subsidiary other than a
     Guarantor, such Restricted Subsidiary shall only be allowed to refinance
     its own Indebtedness or Indebtedness of another Restricted Subsidiary that
     is not a Guarantor;

         (11)    Indebtedness of any Foreign Restricted Subsidiary in an
     aggregate amount at any time outstanding not to exceed 5% of Consolidated
     Total Assets; and

         (12)    Indebtedness of the Issuer, any Guarantor or any Foreign
     Restricted Subsidiary in an aggregate amount not to exceed $20.0 million at
     any time outstanding.

          (c)    For purposes of determining compliance with this Section 4.08,
in the event that an item of Indebtedness meets the criteria of more than one of
the categories of Permitted Indebtedness described in clauses (1) through (12)
of Section 4.08(b) or is entitled to be incurred pursuant to the Coverage Ratio
Exception, the Issuer shall, in its sole discretion, classify such item of
Indebtedness and may divide and classify such Indebtedness in more than one of
the types of Indebtedness described, except that Indebtedness incurred under the
Credit Agreement on the Issue Date shall be deemed to have been incurred under
clause (1) of Section 4.08(b). In addition, for purposes of determining any
particular amount of Indebtedness under this Section 4.08, guarantees, Liens or
letter of credit obligations supporting Indebtedness otherwise included in the
determination of such particular amount shall not be included so long as
incurred by a Person that could have incurred such Indebtedness.

          (d)    The accrual of interest, the accretion or amortization of
original issue discount, the payment of interest on any Indebtedness in the form
of additional Indebtedness with the same terms and the payment of dividends on
Disqualified Equity Interests of the Issuer in the form of additional shares of
the same class of Disqualified Equity Interest will not be deemed to be an
incurrence of Indebtedness for purposes of this Section 4.08.

                                      -44-
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SECTION 4.09.    LIMITATIONS ON RESTRICTED PAYMENTS.

          (a)    The Issuer will not, and will not permit any Restricted
Subsidiary to, directly or indirectly, make any Restricted Payment if at the
time of such Restricted Payment:

          (1)    a Default shall have occurred and be continuing or shall occur
     as a consequence thereof;

          (2)    the Issuer cannot incur $1.00 of additional Indebtedness
     pursuant to the Coverage Ratio Exception; or

          (3)    the amount of such Restricted Payment, when added to the
     aggregate amount of all other Restricted Payments made after the Issue Date
     (other than Restricted Payments made pursuant to clause (2), (3), (4) or
     (5) of Section 4.09(b)), exceeds the sum (the "RESTRICTED PAYMENTS BASKET")
     of (without duplication):

                 (i)   50% of Consolidated Net Income for the period (taken as
          one accounting period) commencing on the first day of the first full
          fiscal quarter commencing after the Issue Date to and including the
          last day of the fiscal quarter ended immediately prior to the date of
          such calculation for which consolidated financial statements are
          available (or, if such Consolidated Net Income shall be a deficit,
          minus 100% of such aggregate deficit), PLUS

                 (ii)  100% of the aggregate net proceeds, including cash and
          the Fair Market Value of the equity of a Person or of assets used in
          or constituting a line of business, in each case which becomes or
          becomes owned by a Restricted Subsidiary, received by the Issuer from
          the issuance and sale of Qualified Equity Interests after the Issue
          Date, other than any such proceeds which are used to redeem Notes in
          accordance with Section 6 of the Notes; PROVIDED, HOWEVER, that the
          Issuer delivers to the Trustee:

                       (x) with respect to any equity or assets with a Fair
                 Market Value in excess of $5.0 million, an Officers'
                 Certificate setting forth such Fair Market Value and a
                 Secretary's Certificate which sets forth and authenticates a
                 resolution that has been adopted by a majority of the
                 Independent Directors approving such Fair Market Value; and

                       (y) with respect to any equity or assets
                 with a Fair Market Value in excess of $10.0 million, the
                 certificates described in the preceding clause (x) and a
                 written opinion as to the Fair Market Value of such equity
                 or assets received by the Issuer from the issuance and sale
                 of such Qualified Equity Interests to the Issuer issued by
                 an Independent Financial Advisor (which opinion may be in
                 the form of a fairness opinion with respect to the
                 transaction in which the equity or assets are acquired),
                 PLUS

                 (iii) 100% of the aggregate net cash proceeds received by the
          Issuer as contributions to the common equity of the Issuer after the
          Issue Date, other than any such proceeds which are used to redeem
          Notes in accordance with Section 6 of the Notes, PLUS

                 (iv)  the aggregate amount by which Indebtedness incurred by
          the Issuer or any Restricted Subsidiary subsequent to the Issue Date
          is reduced on the Issuer's balance

                                      -45-
<Page>

          sheet upon the conversion or exchange (other than by a Subsidiary of
          the Issuer) into Qualified Equity Interests (less the amount of any
          cash, or the fair value of assets, distributed by the Issuer or any
          Restricted Subsidiary upon such conversion or exchange), PLUS

                 (v)   in the case of the disposition or repayment of or return
          on any Investment that was treated as a Restricted Payment made after
          the Issue Date, an amount (to the extent not included in the
          computation of Consolidated Net Income) equal to the lesser of (i) the
          return of capital with respect to such Investment and (ii) the amount
          of such Investment that was treated as a Restricted Payment, in either
          case, less the cost of the disposition of such Investment and net of
          taxes, PLUS

                 (vi)  upon a Redesignation of an Unrestricted Subsidiary as a
          Restricted Subsidiary, the lesser of (i) the Fair Market Value of the
          Issuer's proportionate interest in such Subsidiary immediately
          following such Redesignation, and (ii) the aggregate amount of the
          Issuer's Investments in such Subsidiary to the extent such Investments
          reduced the Restricted Payments Basket and were not previously repaid
          or otherwise reduced.

          (b)    The foregoing provisions will not prohibit:

          (1)    the payment by the Issuer or any Restricted Subsidiary of any
dividend within 60 days after the date of declaration thereof, if on the date of
declaration the payment would have complied with the provisions of this
Indenture;

          (2)    the redemption of any Equity Interests of the Issuer or any
Restricted Subsidiary in exchange for, or out of the proceeds of the
substantially concurrent issuance and sale of, Qualified Equity Interests;

          (3)    the redemption of Subordinated Indebtedness of the Issuer or
any Restricted Subsidiary (a) in exchange for, or out of the proceeds of the
substantially concurrent issuance and sale of, Qualified Equity Interests or (b)
in exchange for, or out of the proceeds of the substantially concurrent
incurrence of, Refinancing Indebtedness permitted to be incurred under Section
4.08 and the other terms of this Indenture;

          (4)    the redemption of Equity Interests of the Issuer held by
officers, directors or employees or former officers, directors or employees (or
their transferees, estates or beneficiaries under their estates), upon their
death, disability, retirement, severance or termination of employment or
service; PROVIDED, HOWEVER, that the aggregate cash consideration paid for all
such redemptions shall not exceed $2.0 million during any calendar year;

          (5)    repurchases of Equity Interests deemed to occur upon the
exercise of stock options or warrants if the Equity Interests represents a
portion of the exercise price thereof;

          (6)    upon the occurrence of a Change of Control and within 60 days
after the completion of the offer to repurchase the Notes pursuant to Section
4.07, any purchase or redemption of Indebtedness of the Issuer required pursuant
to the terms thereof; or

          (7)    Restricted Payments in an amount which, when taken together
with all other Restricted Payments made pursuant to this clause (7), does not
exceed $20.0 million;

                                      -46-
<Page>

PROVIDED, HOWEVER, that (a) in the case of any Restricted Payment pursuant to
clause (3) or (7) above, no Default shall have occurred and be continuing or
occur as a consequence thereof and (b) no issuance and sale of Qualified Equity
Interests pursuant to clause (2) or (3) above shall increase the Restricted
Payments Basket, except to the extent the proceeds thereof exceed the amounts
used to effect the transactions described therein.

SECTION 4.10.    LIMITATIONS ON LIENS.

          The Issuer shall not, and shall not permit any Restricted Subsidiary
to, directly or indirectly, create, incur, assume or permit or suffer to exist
any Lien of any nature whatsoever against (other than Permitted Liens) any
assets of the Issuer or any Restricted Subsidiary (including Equity Interests of
a Restricted Subsidiary), whether owned at the Issue Date or thereafter
acquired, or any proceeds therefrom, or assign or otherwise convey any right to
receive income or profits therefrom (other than Asset Sales permitted under
Section 4.11), unless contemporaneously therewith:

          (a)    in the case of any Lien securing an obligation that ranks PARI
PASSU with the Notes or a Note Guarantee, effective provision is made to secure
the Notes or such Note Guarantee, as the case may be, at least equally and
ratably with or prior to such obligation with a Lien on the same collateral; and

          (b)    in the case of any Lien securing an obligation that is
subordinated in right of payment to the Notes or a Note Guarantee, effective
provision is made to secure the Notes or such Note Guarantee, as the case may
be, with a Lien on the same collateral that is prior to the Lien securing such
subordinated obligation,

in each case, for so long as such obligation is secured by such Lien.

SECTION 4.11.    LIMITATIONS ON ASSET SALES.

          (a)    The Issuer will not, and will not permit any Restricted
Subsidiary to, directly or indirectly, consummate any Asset Sale unless:

          (1)    the Issuer or such Restricted Subsidiary receives consideration
     at the time of such Asset Sale at least equal to the Fair Market Value of
     the assets included in such Asset Sale; and

          (2)    at least 75% of the total consideration received in such Asset
     Sale consists of cash or Cash Equivalents.

          (b)    For purposes of clause (2) of Section 4.11(a), the following
shall be deemed to be cash:

          (1)    the amount (without duplication) of any Indebtedness of the
     Issuer or such Restricted Subsidiary that is expressly assumed by the
     transferee in such Asset Sale and with respect to which the Issuer or such
     Restricted Subsidiary, as the case may be, is released by the holder of
     such Indebtedness;

          (2)    the amount of any obligations received from such transferee
     that are within 90 days converted by the Issuer or such Restricted
     Subsidiary to cash (to the extent of the cash actually so received);

                                      -47-
<Page>

          (3)    the Fair Market Value of (i) any assets (other than securities)
     received by the Issuer or any Restricted Subsidiary to be used by it in the
     Permitted Business, (ii) Equity Interests in a Person that is a Restricted
     Subsidiary or in a Person engaged in a Permitted Business that shall become
     a Restricted Subsidiary immediately upon the acquisition of such Person by
     the Issuer or (iii) a combination of (i) and (ii); and

          (4)    the Fair Market Value of any Equity Interests for which the
     Issuer or such Restricted Subsidiary has a contractual right to require the
     registration of such Equity Interests under the Securities Act or the
     applicable securities laws of the jurisdiction in which such Securities are
     listed on a Major Foreign Exchange ("DESIGNATED NON-CASH CONSIDERATION");
     PROVIDED, HOWEVER, that no consideration received in an Asset Sale will
     constitute Designated Non-Cash Consideration if the classification of such
     consideration as Designated Non-Cash Consideration would cause the
     aggregate amount of all such Designated Non-Cash Consideration outstanding
     at that time to exceed 2.5% of Consolidated Total Assets.

          (c)    If at any time any non-cash consideration received by the
Issuer or any Restricted Subsidiary of the Issuer, as the case may be, in
connection with any Asset Sale is repaid or converted into or sold or otherwise
disposed of for cash (other than interest received with respect to any such
non-cash consideration), then the date of such repayment, conversion or
disposition shall be deemed to constitute the date of an Asset Sale hereunder
and the Net Available Proceeds thereof shall be applied in accordance with this
Section 4.11.

          (d)    If the Issuer or any Restricted Subsidiary engages in an Asset
Sale, the Issuer or such Restricted Subsidiary shall, no later than 360 days
following the consummation thereof, apply all or any of the Net Available
Proceeds therefrom to:

          (1)    repay Senior Debt or Guarantor Senior Debt, and in the case of
     any such repayment under any revolving credit facility, effect a permanent
     reduction in the availability under such revolving credit facility;

          (2)    repay any Indebtedness which was secured by the assets sold in
     such Asset Sale; and/or

          (3)    (A) invest all or any part of the Net Available Proceeds
     thereof in assets (other than securities), including expenditures for
     research and development activities, to be used by the Issuer or any
     Restricted Subsidiary in the Permitted Business, (B) acquire Equity
     Interests in a Person that is a Restricted Subsidiary or in a Person
     engaged in a Permitted Business that shall become a Restricted Subsidiary
     immediately upon the consummation of such acquisition or (C) a combination
     of (A) and (B).

          (e)    The amount of Net Available Proceeds not applied or invested as
provided in this paragraph will constitute "EXCESS PROCEEDS." The Issuer or such
Restricted Subsidiary may repay Senior Debt or Guarantor Senior Debt under a
revolving credit facility during the 360 days following the consummation of such
Asset Sale without effecting a permanent reduction in the availability under
such revolving credit facility, pending application of such proceeds pursuant to
clause (1), (2) or (3) of Section 4.11(d) or their use as Excess Proceeds in
accordance with the next paragraph, and such repayment shall not be considered
an application of Net Available Proceeds for purposes of this paragraph;
PROVIDED, HOWEVER, that, if such Net Available Proceeds are not applied after
360 days for any purpose other than the repayment of a revolving credit
facility, a permanent reduction in the availability under such revolving credit
facility shall then be required.

                                      -48-
<Page>

          (f)    When the aggregate amount of Excess Proceeds equals or exceeds
$10.0 million, the Issuer will be required to make an offer to purchase from all
Holders and, if applicable, redeem (or make an offer to do so) any Pari Passu
Indebtedness of the Issuer the provisions of which require the Issuer to redeem
such Indebtedness with the proceeds from any Asset Sales (or offer to do so), in
an aggregate principal amount of Notes and such Pari Passu Indebtedness equal to
the amount of such Excess Proceeds as follows:

          (1)    the Issuer will (a) make an offer to purchase (a "NET PROCEEDS
     OFFER") to all Holders in accordance with the procedures set forth in this
     Indenture, and (b) redeem (or make an offer to do so) any such other Pari
     Passu Indebtedness, PRO RATA in proportion to the respective principal
     amounts of the Notes and such other Pari Passu Indebtedness required to be
     redeemed, the maximum principal amount of Notes and Pari Passu Indebtedness
     that may be redeemed out of the amount (the "PAYMENT AMOUNT") of such
     Excess Proceeds;

          (2)    the offer price for the Notes will be payable in cash in an
     amount equal to 100% of the principal amount of the Notes tendered pursuant
     to a Net Proceeds Offer, plus accrued and unpaid interest thereon, if any,
     to the date such Net Proceeds Offer is consummated (the "OFFERED PRICE"),
     in accordance with the procedures set forth in this Indenture and the
     redemption price for such Pari Passu Indebtedness (the "PARI PASSU
     INDEBTEDNESS PRICE") shall be as set forth in the related documentation
     governing such Indebtedness;

          (3)    if the aggregate Offered Price of Notes validly tendered and
     not withdrawn by Holders thereof exceeds the PRO RATA portion of the
     Payment Amount allocable to the Notes, Notes to be purchased will be
     selected on a PRO RATA basis; and

          (4)    upon completion of such Net Proceeds Offer in accordance with
     the foregoing provisions, the amount of Excess Proceeds with respect to
     which such Net Proceeds Offer was made shall be deemed to be zero.

          (g)    To the extent that the sum of the aggregate Offered Price of
Notes tendered pursuant to a Net Proceeds Offer and the aggregate Pari Passu
Indebtedness Price paid to the holders of such Pari Passu Indebtedness is less
than the Payment Amount relating thereto (such shortfall constituting a "NET
PROCEEDS DEFICIENCY"), the Issuer may use the Net Proceeds Deficiency, or a
portion thereof, for general corporate purposes, subject to the provisions of
this Indenture.

          (h)    Upon the commencement of a Net Proceeds Offer, the Issuer shall
send or cause to be sent, by first class mail, a notice to the Trustee and to
each Holder at its registered address. The notice shall contain all instructions
and materials necessary to enable such Holder to tender Notes pursuant to the
Net Proceeds Offer. Any Net Proceeds Offer shall be made to all Holders. The
notice, which shall govern the terms of the Net Proceeds Offer, shall state:

          (1)    that the Net Proceeds Offer is being made pursuant to this
     Section 4.11;

          (2)    the Payment Amount, the Offered Price, and the date on which
     Notes tendered and accepted for payment shall be purchased, which date
     shall be at least 30 days and not later than 60 days from the date such
     notices is mailed (the "NET PROCEEDS PAYMENT DATE");

          (3)    that any Notes not tendered or accepted for payment shall
     continue to accrue interest;

                                      -49-
<Page>

          (4)    that, unless the Issuer defaults in making such payment, any
     Notes accepted for payment pursuant to the Net Proceeds Offer shall cease
     to accrue interest on and after the Net Proceeds Payment Date;

          (5)    that Holders electing to have any Notes purchased pursuant to
     any Net Proceeds Offer shall be required to surrender the Notes, with the
     form entitled "Option of Holder to Elect Purchase" on the reverse of the
     Note completed, or transfer by book-entry transfer, to the Issuer, a
     depository, if appointed by the Issuer, or the Paying Agent at the address
     specified in the notice at least three days before the Net Proceeds Payment
     Date;

          (6)    that Holders shall be entitled to withdraw their election if
     the Issuer, the Depository or the Paying Agent, as the case may be,
     receives, not later than the Net Proceeds Payment Date, a notice setting
     forth the name of the Holder, the principal amount of the Note the Holder
     delivered for purchase and a statement that such Holder is withdrawing his
     election to have such Note purchased;

          (7)    that if the aggregate principal amount of Notes surrendered by
     Holders exceeds the Payment Amount, the Issuer shall select the Notes to be
     purchased on a PRO RATA basis (with such adjustments as may be deemed
     appropriate by the Issuer so that only Notes in denominations of $1,000, or
     integral multiples thereof, shall be purchased); and

          (8)    that Holders whose Notes were purchased only in part shall be
     issued new Notes equal in principal amount to the unpurchased portion of
     the Notes surrendered (or transferred by book-entry).

          (i)    On the Net Proceeds Payment Date, the Issuer shall, to the
extent lawful: (1) accept for payment all Notes or portions thereof properly
tendered pursuant to the Net Proceeds Offer, subject to pro ration if the
aggregate Notes tendered exceed the Payment Amount allocable to the Notes; (2)
deposit with the Paying Agent U.S. Legal Tender equal to the lesser of the
Payment Amount allocable to the Notes and the amount sufficient to pay the
Offered Price in respect of all Notes or portions thereof so tendered; and (3)
deliver or cause to be delivered to the Trustee the Notes so accepted together
with an Officers' Certificate stating the aggregate principal amount of Notes or
portions thereof being repurchased by the Issuer. The Issuer shall publicly
announce the results of the Net Proceeds Offer on or as soon as practicable
after the Net Proceeds Payment Date.

          (j)    The Paying Agent shall promptly mail to each Holder of Notes so
tendered the Offered Price for such Notes, and the Trustee shall promptly
authenticate pursuant to an Authentication Order and mail (or cause to be
transferred by book-entry) to each Holder a new Note equal in principal amount
to any unrepurchased portion of the Notes surrendered, if any; PROVIDED,
HOWEVER, that each such new Note shall be in principal amount of $1,000 or an
integral multiple thereof. However, if the Net Proceeds Payment Date is on or
after an interest record date and on or before the related interest payment
date, any accrued and unpaid interest shall be paid to the Person in whose name
a Note is registered at the close of business on such record date, and no
additional interest shall be payable to Holders who tender Notes pursuant to the
Net Proceeds Offer.

          (k)    The Issuer will comply with applicable tender offer rules,
including the requirements of Rule 14e-1 under the Exchange Act and any other
applicable laws and regulations in connection with the purchase of Notes
pursuant to a Net Proceeds Offer. To the extent that the provisions of any
securities laws or regulations conflict with the provisions of this Section
4.11, the Issuer shall comply with

                                      -50-
<Page>

the applicable securities laws and regulations and will not be deemed to have
breached its obligations under this Section 4.11 by virtue of this compliance.

SECTION 4.12.    LIMITATIONS ON TRANSACTIONS WITH AFFILIATES.

          (a)    The Issuer will not, and will not permit any Restricted
Subsidiary to, directly or indirectly, in one transaction or a series of related
transactions, sell, lease, transfer or otherwise dispose of any of its assets
to, or purchase any assets from, or enter into any contract, agreement,
understanding, loan, advance or guarantee with, or for the benefit of, any
Affiliate (an "AFFILIATE TRANSACTION"), unless:

          (1)    such Affiliate Transaction is on terms that are no less
     favorable to the Issuer or the relevant Restricted Subsidiary than those
     that would have been obtained in a comparable transaction at such time on
     an arm's-length basis by the Issuer or that Restricted Subsidiary from a
     Person that is not an Affiliate of the Issuer or that Restricted
     Subsidiary; and

          (2)    the Issuer delivers to the Trustee:

                 (i)   with respect to any Affiliate Transaction involving
          aggregate value expended by the Issuer or any Restricted Subsidiary in
          a consecutive twelve-month period in excess of $5.0 million, an
          Officers' Certificate certifying that such Affiliate Transaction
          complies with clause (1) above and a Secretary's Certificate which
          sets forth and authenticates a resolution that has been adopted by a
          majority of the Independent Directors approving such Affiliate
          Transaction; and

                 (ii)  with respect to any Affiliate Transaction involving
          aggregate value expended by the Issuer or any Restricted Subsidiary in
          a consecutive twelve-month period of $10.0 million or more, the
          certificates described in the preceding clause (a) and a written
          opinion as to the fairness of such Affiliate Transaction to the Issuer
          or such Restricted Subsidiary from a financial point of view issued by
          an Independent Financial Advisor.

          (b)    The foregoing restrictions shall not apply to:

          (1)    transactions exclusively between or among (i) the Issuer and
     one or more Restricted Subsidiaries or (ii) Restricted Subsidiaries;
     PROVIDED, HOWEVER, in each case, that no Affiliate of the Issuer (other
     than another Restricted Subsidiary) owns Equity Interests of any such
     Restricted Subsidiary;

          (2)    director, officer and employee compensation (including bonuses)
     and other benefits (including retirement, health, stock option and other
     benefit plans) and indemnification and insurance arrangements;

          (3)    the entering into of a tax sharing agreement, or payments
     pursuant thereto, between the Issuer and/or one or more Subsidiaries, on
     the one hand, and any other Person with which the Issuer or such
     Subsidiaries are required or permitted to file a consolidated tax return or
     with which the Issuer or such Subsidiaries are part of a consolidated group
     for tax purposes, on the other hand, which payments by the Issuer and the
     Restricted Subsidiaries are not materially in excess of the tax liabilities
     that would have been payable by them on a stand-alone basis;

          (4)    loans and advances permitted by clause (3) of the definition of
     "Permitted Investments";

                                      -51-
<Page>

          (5)    Restricted Payments which are made in accordance with Section
     4.09 and the purchase, repayment or redemption of the 9% Subordinated
     Notes, 10% Subordinated Notes and 3% Convertible Notes at or prior to the
     maturity thereof, in each case in an amount not in excess of the terms of
     such Indebtedness as in effect on the Issue Date; or

          (6)    any transaction with an Affiliate where the only consideration
     paid by the Issuer or any Restricted Subsidiary is Qualified Equity
     Interests.

          (c)    The foregoing restrictions in clause (2) of Section 4.12(a)
shall not apply to ordinary course transactions between the Issuer or any
Restricted Subsidiary and an Unrestricted Subsidiary.

SECTION 4.13.    LIMITATIONS ON DIVIDEND AND OTHER RESTRICTIONS AFFECTING
                 RESTRICTED SUBSIDIARIES.

          The Issuer will not, and will not permit any Restricted Subsidiary to,
directly or indirectly, create or otherwise cause or permit to exist or become
effective any consensual encumbrance or consensual restriction on the ability of
any Restricted Subsidiary to:

          (a)    pay dividends or make any other distributions on or in respect
     of its Equity Interests;

          (b)    make loans or advances or pay any Indebtedness or other
     obligation owed to the Issuer or any other Restricted Subsidiary; or

          (c)    transfer any of its assets to the Issuer or any other
     Restricted Subsidiary;

except for:

          (1)    encumbrances or restrictions existing under or by reason of
     applicable law;

          (2)    encumbrances or restrictions existing under this Indenture, the
     Notes, the Exchange Notes and the Note Guarantees;

          (3)    non-assignment provisions or other restrictions on transfer
     contained in any lease, license or other contract entered into in the
     ordinary course of business;

          (4)    encumbrances or restrictions existing under agreements existing
     on the date of the Indenture (including, without limitation, the Credit
     Agreement) as in effect on that date (with similar restrictions under any
     such agreement applicable to future Restricted Subsidiaries being permitted
     hereunder);

          (5)    restrictions on the transfer of assets subject to any Lien
     permitted under this Indenture imposed by the holder of such Lien;

          (6)    restrictions on the transfer of assets imposed under any
     agreement to sell such assets permitted under this Indenture to any Person
     pending the closing of such sale;

          (7)    any instrument governing Acquired Indebtedness, which
     encumbrance or restriction is not applicable to any Person, or the
     properties or assets of any Person, other than the Person or the properties
     or assets of the Person so acquired;

                                      -52-
<Page>

          (8)    any other agreement governing Indebtedness entered into after
     the Issue Date that contains encumbrances and restrictions that are, in the
     good faith judgment of the Board of Directors, not materially more
     restrictive, taken as a whole, with respect to any Restricted Subsidiary
     than those in effect on the Issue Date with respect to that Restricted
     Subsidiary (or any future Restricted Subsidiary) pursuant to agreements in
     effect on the Issue Date;

          (9)    customary provisions in partnership agreements, limited
     liability company organizational governance documents, joint venture
     agreements and other similar agreements entered into in the ordinary course
     of business that restrict the transfer of ownership interests in such
     partnership, limited liability company, joint venture or similar Person;

         (10)    Purchase Money Indebtedness incurred in compliance with Section
     4.08 that impose restrictions of the nature described in clause (c) above
     on the assets acquired; and

         (11)    any encumbrances or restrictions imposed by any amendments or
     refinancings of the contracts, instruments or obligations referred to in
     clauses (1) through (10) above; PROVIDED, HOWEVER, that such amendments or
     refinancings are, in the good faith judgment of the Issuer's Board of
     Directors, no more materially restrictive with respect to such encumbrances
     and restrictions, taken as a whole, than those prior to such amendment or
     refinancing.

SECTION 4.14.    ADDITIONAL NOTE GUARANTEES.

          (a)    If, after the Issue Date, (a) the Issuer or any Restricted
Subsidiary shall acquire or create a Domestic Subsidiary that guarantees any
Indebtedness or other Obligation under the Credit Agreement (other than a
Subsidiary that has been designated an Unrestricted Subsidiary), (b) any
Unrestricted Subsidiary that is a Domestic Subsidiary that guarantees any
Indebtedness or other Obligation under the Credit Agreement is redesignated a
Restricted Subsidiary or (c) if the proviso in the definition of "Domestic
Subsidiary" shall cease to apply whereupon Morpheus Acquisition LLC shall become
a Domestic Subsidiary, then, in each such case, the Issuer shall cause such
Restricted Subsidiary to:

          (1)    execute and deliver to the Trustee (a) a supplemental indenture
     in form and substance satisfactory to the Trustee pursuant to which such
     Restricted Subsidiary shall unconditionally guarantee all of the Issuer's
     obligations under the Notes and this Indenture and (b) a notation of
     guarantee in respect of its Note Guarantee; and

          (2)    deliver to the Trustee one or more opinions of counsel that
     such supplemental indenture (a) has been duly authorized, executed and
     delivered by such Restricted Subsidiary and (b) constitutes a valid and
     legally binding obligation of such Restricted Subsidiary in accordance with
     its terms.

Thereafter, such Restricted Subsidiary shall be a Guarantor for all purposes of
this Indenture.

          (b)    Notwithstanding Section 4.14(a), a Subsidiary Guarantor will be
automatically and unconditionally released and discharged from its obligations
under its Note Guarantee, this Indenture and the Registration Rights Agreement
under the circumstances set forth in Section 11.05. The form of the Note
Guarantee is attached hereto as EXHIBIT E.

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SECTION 4.15.    LIMITATION ON LAYERING INDEBTEDNESS.

          (a)    The Issuer will not, and will not permit any Restricted
Subsidiary to, directly or indirectly, incur or suffer to exist any Indebtedness
that is or purports to be by its terms (or by the terms of any agreement
governing such Indebtedness) senior in right of payment to the Notes or the Note
Guarantee of such Restricted Subsidiary and subordinated in right of payment to
any other Indebtedness of the Issuer or of such Restricted Subsidiary, as the
case may be.

          (b)    For purposes of Section 4.15(a), no Indebtedness will be deemed
to be subordinated in right of payment to any other Indebtedness of the Issuer
or any Restricted Subsidiary solely by virtue of being unsecured or by virtue of
the fact that the holders of such Indebtedness have entered into intercreditor
agreements or other arrangements giving one or more of such holders priority
over the other holders in the collateral held by them.

SECTION 4.16.    REPORTS TO HOLDERS.

          (a)    Whether or not required by the SEC, so long as any Notes are
outstanding, the Issuer will furnish to the Holders of Notes, or file
electronically with the SEC through the SEC's Electronic Data Gathering,
Analysis and Retrieval System (or any successor system), within the time periods
applicable to the Issuer under Section 13(a) or 15(d) of the Exchange Act:

          (1)    all quarterly and annual financial information that would be
     required to be contained in a filing with the SEC on Forms 10-Q and 10-K if
     the Issuer were required to file these Forms, including a "Management's
     Discussion and Analysis of Financial Condition and Results of Operations"
     and, with respect to the annual information only, a report on the annual
     financial statements by the Issuer's certified independent accountants; and

          (2)    all current reports that would be required to be filed with the
     SEC on Form 8-K if the Issuer were required to file these reports.

          (b)    In addition, whether or not required by the SEC, the Issuer
will file a copy of all of the information and reports referred to in clauses
(1) and (2) above with the SEC for public availability within the time periods
specified in the SEC's rules and regulations (unless the SEC will not accept the
filing) and make the information available to securities analysts and
prospective investors upon request. The Issuer and the Guarantors have agreed
that, for so long as any Notes remain outstanding, the Issuer will furnish to
the Holders and to securities analysts and prospective investors, upon their
request, the information required to be delivered pursuant to Rule 144A(d)(4)
under the Securities Act.

SECTION 4.17.    LIMITATIONS ON DESIGNATION OF UNRESTRICTED SUBSIDIARIES.

          (a)    The Issuer may designate any Subsidiary of the Issuer as an
"Unrestricted Subsidiary" under this Indenture (a "DESIGNATION") only if:

          (1)    no Default shall have occurred and be continuing at the time of
     or after giving effect to such Designation; and

          (2)    the Issuer would be permitted to make, at the time of such
     Designation, (a) a Permitted Investment or (b) an Investment pursuant to
     Section 4.09(a), in either case, in an amount (the "DESIGNATION AMOUNT")
     equal to the Fair Market Value of the Issuer's proportionate interest in
     such Subsidiary on such date, LESS, for this purpose, the amount of any
     intercompany

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     loan from the Issuer or any Restricted Subsidiary to such Subsidiary that
     was treated as a Restricted Payment.

          (b)    No Subsidiary shall be Designated as an "Unrestricted
Subsidiary" unless such Subsidiary:

          (1)    has no Indebtedness other than Non-Recourse Debt;

          (2)    is not party to any agreement, contract, arrangement or
     understanding with the Issuer or any Restricted Subsidiary unless the terms
     of the agreement, contract, arrangement or understanding are no less
     favorable to the Issuer or the Restricted Subsidiary than those that might
     be obtained at the time from Persons who are not Affiliates;

          (3)    is a Person with respect to which neither the Issuer nor any
     Restricted Subsidiary has any direct or indirect obligation (a) to
     subscribe for additional Equity Interests or (b) to maintain or preserve
     the Person's financial condition or to cause the Person to achieve any
     specified levels of operating results; and

          (4)    has not guaranteed or otherwise directly or indirectly provided
     credit support for any Indebtedness of the Issuer or any Restricted
     Subsidiary in excess of $5.0 million in the aggregate, except for any
     guarantee given solely to support the pledge by the Issuer or any
     Restricted Subsidiary of the Equity Interests of such Unrestricted
     Subsidiary, which guarantee is not recourse to the Issuer or any Restricted
     Subsidiary, and except to the extent the amount thereof constitutes a
     Restricted Payment permitted under Section 4.09.

          (c)    If, at any time, any Unrestricted Subsidiary fails to meet the
requirements of Section 4.17(a) and (b) as an Unrestricted Subsidiary, it shall
thereafter cease to be an Unrestricted Subsidiary for purposes of this Indenture
and any Indebtedness of the Subsidiary and any Liens on assets of such
Subsidiary shall be deemed to be incurred by a Restricted Subsidiary as of the
date and, if the Indebtedness is not permitted to be incurred under Section 4.08
or the Lien is not permitted under Section 4.10, the Issuer shall be in default
of the applicable covenant. For purposes of clause (1) of Section 4.17(b), with
respect to IVC Industries, Inc., "Non-Recourse Debt" shall be deemed to include
Preferred Stock of IVC Industries, Inc. outstanding on the Issue Date.

          (d)    The Issuer may redesignate an Unrestricted Subsidiary as a
Restricted Subsidiary (a "REDESIGNATION") only if:

          (1)    no Default shall have occurred and be continuing at the time of
     and after giving effect to such Redesignation; and

          (2)    all Liens, Indebtedness and Investments of such Unrestricted
     Subsidiary outstanding immediately following such Redesignation would, if
     incurred or made at such time, have been permitted to be incurred or made
     for all purposes of this Indenture.

          (e)    All Designations and Redesignations must be evidenced by
resolutions of the Board of Directors of the Issuer, delivered to the Trustee
certifying compliance with the foregoing provisions.

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SECTION 4.18.    LIMITATION ON THE ISSUANCE OR SALE OF EQUITY INTERESTS OF
                 RESTRICTED SUBSIDIARIES.

          The Issuer will not, and will not permit any Restricted Subsidiary to,
directly or indirectly, sell or issue any shares of Equity Interests of any
Restricted Subsidiary except (1) to the Issuer, a Guarantor or the minority
stockholders of any Guarantor, on a PRO RATA basis, at Fair Market Value, or (2)
to the extent such shares represent directors' qualifying shares or shares
required by applicable law to be held by a Person other than the Issuer or a
Wholly-Owned Restricted Subsidiary. The sale of all the Equity Interests of any
Restricted Subsidiary is permitted by this Section 4.18 but is subject to
Section 4.11.

SECTION 4.19.    CONDUCT OF BUSINESS.

          The Issuer will not, and will not permit any Restricted Subsidiary to,
engage in any business other than the Permitted Business.

SECTION 4.20.    LIMITATIONS ON SALE AND LEASEBACK TRANSACTIONS.

          The Issuer will not, and will not permit any Restricted Subsidiary to,
directly or indirectly, enter into any Sale and Leaseback Transaction; PROVIDED,
HOWEVER, that the Issuer or any Restricted Subsidiary may enter into a Sale and
Leaseback Transaction if:

          (a)    the Issuer or such Restricted Subsidiary could have (1)
incurred the Indebtedness attributable to such Sale and Leaseback Transaction
pursuant to Section 4.08 and (2) incurred a Lien to secure such Indebtedness
without equally and ratably securing the Notes pursuant to Section 4.10;

          (b)    the gross cash proceeds of such Sale and Leaseback Transaction
are at least equal to the Fair Market Value of the asset that is the subject of
such Sale and Leaseback Transaction; and

          (c)    the transfer of assets in such Sale and Leaseback Transaction
is permitted by, and the Issuer or the applicable Restricted Subsidiary applies
the proceeds of such transaction in accordance with Section 4.11.

                                  ARTICLE FIVE

                              SUCCESSOR CORPORATION

SECTION 5.01.    MERGERS, CONSOLIDATIONS, ETC.

          (a)    The Issuer will not, directly or indirectly, in a single
transaction or a series of related transactions, (1) consolidate or merge with
or into (other than a merger with a Wholly-Owned Restricted Subsidiary solely
for the purpose of changing the Issuer's jurisdiction of incorporation to
another State of the United States), or sell, lease, transfer, convey or
otherwise dispose of or assign all or substantially all of the assets of the
Issuer or the Issuer and the Restricted Subsidiaries (taken as a whole) or (2)
effect a Plan of Liquidation unless, in either case:

          (i)    either:

                 (x)   the Issuer will be the surviving or continuing Person; or

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                 (y)   the Person formed by or surviving such consolidation or
          merger or to which such sale, lease, conveyance or other disposition
          shall be made (or, in the case of a Plan of Liquidation, any Person to
          which assets are transferred) (collectively, the "SUCCESSOR") is a
          corporation organized and existing under the laws of any State of the
          United States of America or the District of Columbia, and the
          Successor expressly assumes, by supplemental indenture in form and
          substance satisfactory to the Trustee, all of the obligations of the
          Issuer under the Notes, this Indenture and the Registration Rights
          Agreement;

          (ii)   immediately after giving effect to such transaction and the
     assumption of the obligations as set forth in clause (i)(y) above and the
     incurrence of any Indebtedness to be incurred in connection therewith, no
     Default shall have occurred and be continuing; and

          (iii)  except in the case of the consolidation or merger of any
     Restricted Subsidiary with or into the Issuer, immediately after giving
     effect to such transaction and the assumption of the obligations set forth
     in clause (i)(y) above and the incurrence of any Indebtedness to be
     incurred in connection therewith, and the use of any net proceeds therefrom
     on a pro forma basis, (x) the Consolidated Net Worth of the Issuer or the
     Successor, as the case may be, would be at least equal to the Consolidated
     Net Worth of the Issuer immediately prior to such transaction and (y)
     either (A) the Issuer or the Successor, as the case may be, could incur
     $1.00 of additional Indebtedness pursuant to the Coverage Ratio Exception
     or (B) the Consolidated Interest Coverage Ratio of the Issuer or the
     Successor, as the case may be, would be at least equal to the Consolidated
     Interest Coverage Ratio of the Issuer immediately prior to such
     transaction.

          For purposes of this Section 5.01(a), any Indebtedness of the
Successor which was not Indebtedness of the Issuer immediately prior to the
transaction shall be deemed to have been incurred in connection with such
transaction.

          (b)    Except as provided under Article Eleven, no Guarantor may
consolidate with or merge with or into (whether or not such Guarantor is the
surviving Person) another Person (other than the Issuer or another Guarantor),
whether or not affiliated with such Guarantor, unless:

          (1)    either:

                 (i)   such Guarantor will be the surviving or continuing
          Person; or

                 (ii)  the Person formed by or surviving any such consolidation
          or merger assumes, by supplemental indenture in form and substance
          satisfactory to the Trustee, all of the obligations of such Guarantor
          under the Note Guarantee of such Guarantor, this Indenture and the
          Registration Rights Agreement; and

          (2)    immediately after giving effect to such transaction, no Default
     shall have occurred and be continuing.

          (c)    For purposes of the foregoing, the transfer (by lease,
assignment, sale or otherwise, in a single transaction or series of
transactions) of all or substantially all of the properties or assets of one or
more Restricted Subsidiaries, the Equity Interests of which constitute all or
substantially all of the properties and assets of the Issuer, will be deemed to
be the transfer of all or substantially all of the properties and assets of the
Issuer.

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          (d)    Except as provided under Article Eleven, upon any
consolidation, combination or merger of the Issuer or a Guarantor, or any
transfer of all or substantially all of the assets of the Issuer in accordance
with the foregoing, in which the Issuer or such Guarantor is not the continuing
obligor under the Notes or its Note Guarantee, the surviving entity formed by
such consolidation or into which the Issuer or such Guarantor is merged or to
which the conveyance, lease or transfer is made will succeed to, and be
substituted for, and may exercise every right and power of, the Issuer or such
Guarantor under this Indenture, the Notes and the Note Guarantees with the same
effect as if such surviving entity had been named therein as the Issuer or such
Guarantor and, except in the case of a conveyance, transfer or lease, the Issuer
or such Guarantor, as the case may be, will be released from the obligation to
pay the principal of and interest on the Notes or in respect of its Note
Guarantee, as the case may be, and all of the Issuer's or such Guarantor's other
obligations and covenants under the Notes, this Indenture and its Note
Guarantee, if applicable.

          (e)    Notwithstanding the foregoing, any Restricted Subsidiary may
merge into the Issuer or another Restricted Subsidiary.

                                   ARTICLE SIX

                              DEFAULT AND REMEDIES

SECTION 6.01.    EVENTS OF DEFAULT.

          Each of the following is an "EVENT OF DEFAULT":

          (1)    failure by the Issuer to pay interest on any of the Notes when
     it becomes due and payable and the continuance of any such failure for 30
     days (whether or not such payment is prohibited by the subordination
     provisions of this Indenture);

          (2)    failure by the Issuer to pay the principal on any of the Notes
     when it becomes due and payable, whether at Stated Maturity, upon
     redemption, upon purchase, upon acceleration or otherwise (whether or not
     such payment is prohibited by the subordination provisions of this
     Indenture);

          (3)    failure by the Issuer to comply with Article Five or in respect
     of its obligations to make a Change of Control Offer as described under
     Section 4.07 (whether or not such payment is prohibited by the
     subordination provisions of this Indenture);

          (4)    failure by the Issuer to comply with any other agreement or
     covenant in this Indenture and the continuance of any such failure for 30
     days after notice of such failure has been given to the Issuer by the
     Trustee or by the Holders of at least 25% of the aggregate principal amount
     of the Notes then outstanding;

          (5)    default under any mortgage, indenture or other instrument or
     agreement under which there may be issued or by which there may be secured
     or evidenced Indebtedness of the Issuer or any Restricted Subsidiary,
     whether such Indebtedness now exists or is incurred after the Issue Date,
     which default:

                 (i)   is caused by a failure to pay at final maturity (giving
          effect to any applicable grace periods and any extensions thereof)
          principal on such Indebtedness within the applicable express grace
          period,

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                 (ii)  results in the acceleration of such Indebtedness prior to
          its express final maturity or

                 (iii) results in the commencement of judicial proceedings to
          foreclose upon, or to exercise remedies under applicable law or
          applicable security documents to take ownership of, the assets
          securing such Indebtedness, and

     in each case, the principal amount of such Indebtedness, together with any
     other Indebtedness with respect to which an event described in clause (i),
     (ii) or (iii) has occurred and is continuing, aggregates $10.0 million or
     more;

          (6)    one or more final judgments or orders that exceed $10.0 million
     in the aggregate (net of amounts covered by insurance or bonded) for the
     payment of money have been entered by a court or courts of competent
     jurisdiction against the Issuer or any Restricted Subsidiary and such
     judgment or judgments have not been satisfied, stayed, annulled or
     rescinded within 60 days of being entered (or such longer period as may be
     permitted for timely appeal under applicable law);

          (7)    the Issuer or any Significant Subsidiary pursuant to or within
     the meaning of any Bankruptcy Law:

                 (i)   commences a voluntary case,

                 (ii)  consents to the entry of an order for relief against it
          in an involuntary case,

                 (iii) consents to the appointment of a Custodian of it or for
          all or substantially all of its assets, or

                 (iv)  makes a general assignment for the benefit of its
          creditors;

          (8)    a court of competent jurisdiction enters an order or decree
     under any Bankruptcy Law that:

                 (i)   is for relief against the Issuer or any Significant
          Subsidiary as debtor in an involuntary case,

                 (ii)  appoints a Custodian of the Issuer or any Significant
          Subsidiary or a Custodian for all or substantially all of the assets
          of the Issuer or any Significant Subsidiary, or

                 (iii) orders the liquidation of the Issuer or any Significant
          Subsidiary,

and the order or decree remains unstayed and in effect for 60 days; or

          (9)   (a) any Note Guarantee of any Significant Subsidiary ceases
     to be in full force and effect (other than in accordance with the terms of
     such Note Guarantee and this Indenture) or is declared null and void and
     unenforceable or found to be invalid and such Event of Default remains
     uncured for a period of 30 days, or (b) any Guarantor denies its liability
     under its Note

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     Guarantee (other than by reason of release of a Guarantor from its Note
     Guarantee in accordance with the terms of this Indenture and the Note
     Guarantee).

SECTION 6.02.    ACCELERATION.

          (a)    If an Event of Default specified in clause (7) or (8) of
Section 6.01 with respect to the Issuer occurs, all outstanding Notes shall
become due and payable without any further action or notice. If an Event of
Default (other than an Event of Default specified in clause (7) or (8) of
Section 6.01 with respect to the Issuer) shall have occurred and be continuing
under this Indenture, the Trustee, by written notice to the Issuer, or the
Holders of at least 25% in aggregate principal amount of the Notes then
outstanding by written notice to the Issuer and the Trustee, may declare all
amounts owing under the Notes to be due and payable immediately. Upon such
declaration of acceleration, the aggregate principal of and accrued and unpaid
interest on the outstanding Notes shall become due and payable (a) if there is
any Designated Senior Debt outstanding at such time, with respect to any
acceleration arising out of any event of default other than a payment default,
upon the earlier of (x) the date which is five (5) business days after receipt
by the Representatives of a notice such acceleration or (y) the date of
acceleration of any Designated Senior Debt and (b) if otherwise, immediately;
PROVIDED, HOWEVER, that after such acceleration, but before a judgment or decree
based on acceleration, the Holders of a majority in aggregate principal amount
of such outstanding Notes may rescind and annul such acceleration:

          (1)    if the rescission would not conflict with any judgment or
     decree;

          (2)    if all existing Defaults have been cured or waived except
     nonpayment of principal and interest that has become due solely because of
     this acceleration;

          (3)    to the extent the payment of such interest is lawful, interest
     on overdue installments of interest and overdue principal, which has become
     due otherwise than by such declaration of acceleration, has been paid;

          (4)    if the Issuer has paid to the Trustee its reasonable
     compensation and reimbursed the Trustee of its expenses, disbursements and
     advances; and

          (5)    in the event of a cure or waiver of a Default of the type set
     forth in Section 6.01(7) or (8), the Trustee shall have received an
     Officers' Certificate and an Opinion of Counsel that such Default has been
     cured or waived.

No such rescission shall affect any subsequent Default or impair any right
consequent thereto.

          (b)    The Issuer shall provide prompt written notice to the holders
of Senior Debt and Guarantor Senior Debt of any acceleration pursuant to Section
6.02(a).

SECTION 6.03.    OTHER REMEDIES.

          (a)    If a Default occurs and is continuing, the Trustee may pursue
     any available remedy by proceeding at law or in equity to collect the
     payment of principal of, or interest on, the Notes or to enforce the
     performance of any provision of the Notes or this Indenture.

          The Trustee may maintain a proceeding even if it does not possess any
of the Notes or does not produce any of them in the proceeding. A delay or
omission by the Trustee or any Holder in exercising any right or remedy accruing
upon a Default shall not impair the right or remedy or constitute a

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waiver of or acquiescence in the Default. No remedy is exclusive of any other
remedy. All available remedies are cumulative to the extent permitted by law.

SECTION 6.04.    WAIVER OF PAST DEFAULTS.

          Subject to Sections 2.09, 6.07 and 9.02, the Holders of a majority in
principal amount of the outstanding Notes (which may include consents obtained
in connection with a tender offer or exchange offer of Notes) by notice to the
Trustee may waive an existing Default and its consequences, except a Default in
the payment of principal of, or interest on, any Note as specified in Section
6.01(1) or (2). The Issuer shall deliver to the Trustee an Officers' Certificate
stating that the requisite percentage of Holders have consented to such waiver
and attaching copies of such consents. When a Default is waived, it is cured and
ceases.

SECTION 6.05.    CONTROL BY MAJORITY.

          (a)    The Holders of not less than a majority in principal amount of
the outstanding Notes may direct the time, method and place of conducting any
proceeding for any remedy available to the Trustee or exercising any trust or
power conferred on it. Subject to Section 7.01, however, the Trustee may refuse
to follow any direction that conflicts with any law or this Indenture, that the
Trustee determines may be unduly prejudicial to the rights of another Holder, or
that may involve the Trustee in personal liability; PROVIDED, HOWEVER, that the
Trustee may take any other action deemed proper by the Trustee which is not
inconsistent with such direction.

          (b)    In the event the Trustee takes any action or follows any
direction pursuant to this Indenture, the Trustee shall be entitled to
indemnification against any loss or expense caused by taking such action or
following such direction.

SECTION 6.06.    LIMITATION ON SUITS.

          (a)    No Holder will have any right to institute any proceeding with
respect to the Indenture or for any remedy thereunder, unless the Trustee:

          (1)    has failed to act for a period of 60 days after receiving
     written notice of a continuing Event of Default by such Holder and a
     request to act by Holders of at least 25% in aggregate principal amount of
     Notes outstanding;

          (2)    has been offered indemnity satisfactory to it in its reasonable
     judgment; and

          (3)    has not received from the Holders of a majority in aggregate
     principal amount of the outstanding Notes a direction inconsistent with
     such request.

          (b)    However, such limitations do not apply to a suit instituted by
a Holder of any Note for enforcement of payment of the principal of or interest
on such Note on or after the due date therefor (after giving effect to the grace
period specified in clause (1) of Section 6.01).

          (c)    A Holder may not use this Indenture to prejudice the rights of
another Holder or to obtain a preference or priority over such other Holder.

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SECTION 6.07.    RIGHTS OF HOLDERS TO RECEIVE PAYMENT.

          Notwithstanding any other provision of this Indenture, the right of
any Holder to receive payment of principal of, and interest on, a Note, on or
after the respective due dates therefor, or to bring suit for the enforcement of
any such payment on or after such respective dates, shall not be impaired or
affected without the consent of the Holder.

SECTION 6.08.    COLLECTION SUIT BY TRUSTEE.

          If a Default in payment of principal or interest specified in Section
6.01(1) or (2) occurs and is continuing, the Trustee may recover judgment in its
own name and as trustee of an express trust against the Issuer or any other
obligor on the Notes for the whole amount of principal and accrued interest and
fees remaining unpaid, together with interest on overdue principal and, to the
extent that payment of such interest is lawful, interest on overdue installments
of interest, in each case at the rate PER ANNUM borne by the Notes and such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

SECTION 6.09.    TRUSTEE MAY FILE PROOFS OF CLAIM.

          The Trustee may file such proofs of claim and other papers or
documents as may be necessary or advisable in order to have the claims of the
Trustee (including any claim for the compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel) and the Holders allowed in any
judicial proceedings relating to the Issuer, their creditors or their property
and shall be entitled and empowered to collect and receive any monies or other
property payable or deliverable on any such claims and to distribute the same,
and any Custodian in any such judicial proceedings is hereby authorized by each
Holder to make such payments to the Trustee and, in the event that the Trustee
shall consent to the making of such payments directly to the Holders, to pay to
the Trustee any amount due to it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agent and counsel, and any other
amounts due the Trustee under Section 7.07. Nothing herein contained shall be
deemed to authorize the Trustee to authorize or consent to or accept or adopt on
behalf of any Holder any plan of reorganization, arrangement, adjustment or
composition affecting the Notes or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder in any such
proceeding. The Trustee shall be entitled to participate as a member of any
official committee of creditors in the matters as it deems necessary or
advisable.

SECTION 6.10.    PRIORITIES.

          If the Trustee collects any money or property pursuant to this Article
Six, it shall pay out the money or property in the following order:

          FIRST: to the Trustee for amounts due under Section 7.07;

          SECOND: to Holders for interest accrued on the Notes, ratably, without
     preference or priority of any kind, according to the amounts due and
     payable on the Notes for interest;

          THIRD: to Holders for principal amounts due and unpaid on the Notes,
     ratably, without preference or priority of any kind, according to the
     amounts due and payable on the Notes for principal; and

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          FOURTH: to the Issuer or, if applicable, the Guarantors, as their
     respective interests may appear.

          The Trustee, upon prior notice to the Issuer, may fix a record date
and payment date for any payment to Holders pursuant to this Section 6.10.

SECTION 6.11.    UNDERTAKING FOR COSTS.

          In any suit for the enforcement of any right or remedy under this
Indenture or in any suit against the Trustee for any action taken or omitted by
it as Trustee, a court in its discretion may require the filing by any party
litigant in the suit of an undertaking to pay the costs of the suit, and the
court in its discretion may assess reasonable costs, including reasonable
attorneys' fees and expenses, against any party litigant in the suit, having due
regard to the merits and good faith of the claims or defenses made by the party
litigant. This Section 6.11 does not apply to a suit by the Trustee, a suit by a
Holder pursuant to Section 6.07, or a suit by a Holder or Holders of more than
10% in principal amount of the outstanding Notes.

                                  ARTICLE SEVEN

                                     TRUSTEE

SECTION 7.01.    DUTIES OF TRUSTEE.

          (a)    If a Default has occurred and is continuing, the Trustee shall
exercise such of the rights and powers vested in it by this Indenture and use
the same degree of care and skill in their exercise as a prudent person would
exercise or use under the circumstances in the conduct of his or her own
affairs.

          (b)    Except during the continuance of a Default:

          (1)    The Trustee need perform only those duties as are specifically
     set forth herein or in the Trust Indenture Act and no duties, covenants,
     responsibilities or obligations shall be implied in this Indenture against
     the Trustee.

          (2)    In the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates (including Officers'
     Certificates) or opinions (including Opinions of Counsel) furnished to the
     Trustee and conforming to the requirements of this Indenture. However, in
     the case of any such certificates or opinions which by any provision hereof
     are specifically required to be furnished to the Trustee, the Trustee shall
     examine the certificates and opinions to determine whether or not they
     conform to the requirements of this Indenture.

          (c)    Notwithstanding anything to the contrary herein, the Trustee
may not be relieved from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that:

          (1)    This paragraph does not limit the effect of Section 7.01(b).

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          (2)    The Trustee shall not be liable for any error of judgment made
     in good faith by a Responsible Officer, unless it is proved that the
     Trustee was negligent in ascertaining the pertinent facts.

          (3)    The Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.

          (d)    No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder or to take or omit to take any action
under this Indenture or take any action at the request or direction of Holders
if it shall have reasonable grounds for believing that repayment of such funds
is not assured to it.

          (e)    Whether or not therein expressly so provided, every provision
of this Indenture that in any way relates to the Trustee is subject to this
Section 7.01.

          (f)    The Trustee shall not be liable for interest on any money
received by it except as the Trustee may agree in writing with the Issuer. Money
held in trust by the Trustee need not be segregated from other funds except to
the extent required by law.

          (g)    In the absence of bad faith, negligence or willful misconduct
on the part of the Trustee, the Trustee shall not be responsible for the
application of any money by any Paying Agent other than the Trustee.

SECTION 7.02.    RIGHTS OF TRUSTEE.

          Subject to Section 7.01:

          (a)    The Trustee may rely conclusively on any resolution,
     certificate (including any Officers' Certificate), statement, instrument,
     opinion (including any Opinion of Counsel), notice, request, direction,
     consent, order, bond, debenture, or other paper or document believed by it
     to be genuine and to have been signed or presented by the proper Person.
     The Trustee need not investigate any fact or matter stated in such
     document.

          (b)    Before the Trustee acts or refrains from acting, it may require
     an Officers' Certificate and an Opinion of Counsel, which shall conform to
     the provisions of Section 12.05. The Trustee shall not be liable for any
     action it takes or omits to take in good faith in reliance on such
     Officer's Certificate or Opinion of Counsel.

          (c)    The Trustee may act through its attorneys and agents and shall
     not be responsible for the misconduct or negligence of any agent (other
     than an agent who is an employee of the Trustee) appointed with due care.

          (d)    The Trustee shall not be liable for any action it takes or
     omits to take in good faith which it reasonably believes to be authorized
     or within its rights or powers under this Indenture.

          (e)    The Trustee may consult with counsel of its selection and the
     advice or opinion of such counsel as to matters of law shall be full and
     complete authorization and protection from liability in respect of any
     action taken, omitted or suffered by it hereunder in good faith and in
     accordance with the advice or opinion of such counsel.

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          (f)    The Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request, order or
     direction of any of the Holders pursuant to the provisions of this
     Indenture, unless such Holders shall have offered to the Trustee reasonable
     security or indemnity satisfactory to it against the costs, expenses and
     liabilities which may be incurred therein or thereby.

          (g)    The Trustee shall not be bound to make any investigation into
     the facts or matters stated in any resolution, certificate (including any
     Officers' Certificate), statement, instrument, opinion (including any
     Opinion of Counsel), notice, request, direction, consent, order, bond,
     debenture, or other paper or document, but the Trustee, in its discretion,
     may make such further inquiry or investigation into such facts or matters
     as it may see fit and, if the Trustee shall determine to make such further
     inquiry or investigation, it shall be entitled, upon reasonable notice to
     the Issuer, to examine the books, records, and premises of the Issuer,
     personally or by agent or attorney at the sole cost of the Issuer.

          (h)    The Trustee shall not be required to give any bond or surety in
     respect of the performance of its powers and duties hereunder.

          (i)    The permissive rights of the Trustee to do things enumerated in
     this Indenture shall not be construed as duties.

          (j)    Except with respect to Section 4.01 and 4.05, the Trustee shall
     have no duty to inquire as to the performance of the Issuer with respect to
     the covenants contained in Article Four. In addition, the Trustee shall not
     be deemed to have knowledge of an Event of Default except (i) any Default
     or Event of Default occurring pursuant to Sections 4.01, 6.01(1) or 6.01(2)
     or (ii) any Default or Event of Default of which the Trustee shall have
     received written notification.

          (k)    The rights, privileges, protections, immunities and benefits
     given to the Trustee, including, without limitation, its right to be
     indemnified, are extended to, and shall be enforceable by, the Trustee in
     each of its capacities hereunder, and to each agent, custodian and other
     Person employed to act hereunder.

SECTION 7.03.    INDIVIDUAL RIGHTS OF TRUSTEE.

          The Trustee in its individual or any other capacity may become the
owner or pledgee of Notes and may otherwise deal with the Issuer, its
Subsidiaries or its respective Affiliates with the same rights it would have if
it were not Trustee. Any Agent may do the same with like rights. However, the
Trustee must comply with Sections 7.10 and 7.11.

SECTION 7.04.    TRUSTEE'S DISCLAIMER.

          The Trustee shall not be responsible for and makes no representation
as to the validity or adequacy of this Indenture or the Notes, it shall not be
accountable for the Issuer's use of the proceeds from the Notes, and it shall
not be responsible for any statement of the Issuer in this Indenture or any
document issued in connection with the sale of Notes or any statement in the
Notes other than the Trustee's certificate of authentication. The Trustee makes
no representations with respect to the effectiveness or adequacy of this
Indenture.

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SECTION 7.05.    NOTICE OF DEFAULT.

          If a Default occurs and is continuing and the Trustee receives actual
notice of such Default, the Trustee shall mail to each Holder notice of the
uncured Default within 30 days after such Default occurs. Except in the case of
a Default in payment of principal of, or interest on, any Note, including an
accelerated payment and the failure to make a payment on the Change of Control
Payment Date pursuant to a Change of Control Offer or the Net Proceeds Payment
Date pursuant to a Net Proceeds Offer, or a Default in complying with the
provisions of Article Five, the Trustee may withhold the notice if and so long
as the Board of Directors, the executive committee, or a trust committee of
directors and/or Responsible Officers, of the Trustee in good faith determines
that withholding the notice is in the interest of the Holders.

SECTION 7.06.    REPORTS BY TRUSTEE TO HOLDERS.

          Within 60 days after each January 1, beginning with January 1, 2005,
the Trustee shall, to the extent that any of the events described in Trust
Indenture Act Section 313(a) occurred within the previous twelve months, but not
otherwise, mail to each Holder a brief report dated as of such date that
complies with Trust Indenture Act Section 313(a). The Trustee also shall comply
with Trust Indenture Act Sections 313(b), 313(c) and 313(d).

          A copy of each report at the time of its mailing to Holders shall be
mailed to the Issuer and filed with the SEC and each securities exchange, if
any, on which the Notes are listed.

          The Issuer shall notify the Trustee if the Notes become listed on any
securities exchange or of any delisting thereof and the Trustee shall comply
with Trust Indenture Act Section 313(d).

SECTION 7.07.    COMPENSATION AND INDEMNITY.

          The Issuer shall pay to the Trustee from time to time such
compensation as the Issuer and the Trustee shall from time to time agree in
writing for its services hereunder. The Trustee's compensation shall not be
limited by any law on compensation of a trustee of an express trust. The Issuer
shall reimburse the Trustee upon request for all reasonable disbursements,
expenses and advances (including reasonable fees and expenses of counsel)
incurred or made by it in addition to the compensation for its services, except
any such disbursements, expenses and advances as may be attributable to the
Trustee's negligence, bad faith or willful misconduct. Such expenses shall
include the reasonable fees and expenses of the Trustee's agents and counsel.

          The Issuer shall indemnify each of the Trustee or any predecessor
Trustee and its agents for, and hold them harmless against, any and all loss,
damage, claims including taxes (other than taxes based upon, measured by or
determined by the income of the Trustee), liability or expense incurred by them
except for such actions to the extent caused by any negligence, bad faith or
willful misconduct on their part, arising out of or in connection with the
acceptance or administration of this trust including the reasonable costs and
expenses of defending themselves against or investigating any claim or liability
in connection with the exercise or performance of any of the Trustee's rights,
powers or duties hereunder. The Trustee shall notify the Issuer promptly of any
claim asserted against the Trustee or any of its agents for which it may seek
indemnity. The Issuer may, subject to the approval of the Trustee (which
approval shall not be unreasonably withheld), defend the claim and the Trustee
shall cooperate in the defense. The Trustee and its agents subject to the claim
may have separate counsel and the Issuer shall pay the reasonable fees and
expenses of such counsel; PROVIDED, HOWEVER, that the Issuer will not be
required to pay such fees and expenses if, subject to the approval of the
Trustee (which approval shall not be unreasonably

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withheld), it assumes the Trustee's defense and there is no conflict of interest
between the Issuer and the Trustee and its agents subject to the claim in
connection with such defense as reasonably determined by the Trustee. The Issuer
need not pay for any settlement made without its written consent. The Issuer
need not reimburse any expense or indemnify against any loss or liability to the
extent incurred by the Trustee through its negligence, bad faith or willful
misconduct.

          To secure the Issuer's payment obligations in this Section 7.07, the
Trustee shall have a Lien prior to the Notes against all money or property held
or collected by the Trustee, in its capacity as Trustee, except money or
property held in trust to pay principal and interest on particular Notes. The
obligations of the Issuer and the Guarantors under this Section 7.07 shall not
be subordinated to the payment of Senior Debt pursuant to Article Ten or Section
11.02, except assets or money held in trust to pay principal of or interest on
particular Notes.

          When the Trustee incurs expenses or renders services after a Default
specified in Section 6.01(7) or (8) occurs, such expenses and the compensation
for such services shall be paid to the extent allowed under any Bankruptcy Law.

          Notwithstanding any other provision in this Indenture, the foregoing
provisions of this Section 7.07 shall survive the satisfaction and discharge of
this Indenture or the appointment of a successor Trustee.

SECTION 7.08.    REPLACEMENT OF TRUSTEE.

          The Trustee may resign at any time by so notifying the Issuer in
writing. The Holders of a majority in principal amount of the outstanding Notes
may remove the Trustee by so notifying the Issuer and the Trustee and may
appoint a successor Trustee. The Issuer may remove the Trustee if:

          (1)    the Trustee fails to comply with Section 7.10;

          (2)    the Trustee is adjudged a bankrupt or an insolvent;

          (3)    a receiver or other public officer takes charge of the Trustee
     or its property; or

          (4)    the Trustee becomes incapable of acting.

          If the Trustee resigns or is removed or if a vacancy exists in the
office of Trustee for any reason, the Issuer shall notify each Holder of such
event and shall promptly appoint a successor Trustee. Within one year after the
successor Trustee takes office, the Holders of a majority in principal amount of
the Notes may appoint a successor Trustee to replace the successor Trustee
appointed by the Issuer.

          A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Issuer. Immediately after that,
the retiring Trustee shall transfer, after payment of all sums then owing to the
Trustee pursuant to Section 7.07, all property held by it as Trustee to the
successor Trustee, subject to the Lien provided in Section 7.07, the resignation
or removal of the retiring Trustee shall become effective, and the successor
Trustee shall have all the rights, powers and duties of the Trustee under this
Indenture. A successor Trustee shall mail notice of its succession to each
Holder.

          If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Issuer or the
Holders of at least 10% in principal amount of

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the outstanding Notes may petition any court of competent jurisdiction for the
appointment of a successor Trustee at the expense of the Issuer.

          If the Trustee fails to comply with Section 7.10, any Holder may
petition any court of competent jurisdiction for the removal of the Trustee and
the appointment of a successor Trustee.

          Notwithstanding replacement of the Trustee pursuant to this Section
7.08, the Issuer's obligations under Section 7.07 shall continue for the benefit
of the retiring Trustee.

SECTION 7.09.    SUCCESSOR TRUSTEE BY MERGER, ETC.

          If the Trustee consolidates with, merges or converts into, or
transfers all or substantially all of its corporate trust business to, another
corporation, the resulting, surviving or transferee corporation without any
further act shall, if such resulting, surviving or transferee corporation is
otherwise eligible hereunder, be the successor Trustee; PROVIDED, HOWEVER, that
such corporation shall be otherwise qualified and eligible under this Article
Seven.

SECTION 7.10.    ELIGIBILITY; DISQUALIFICATION.

          This Indenture shall always have a Trustee who satisfies the
requirement of Trust Indenture Act Sections 310(a)(1), 310(a)(2) and 310(a)(5).
The Trustee shall have a combined capital and surplus of at least $150,000,000
as set forth in its most recent published annual report of condition. The
Trustee shall comply with Trust Indenture Act Section 310(b); PROVIDED, HOWEVER,
that there shall be excluded from the operation of Trust Indenture Act Section
310(b)(1) any indenture or indentures under which other securities, or
certificates of interest or participation in other securities, of the Issuer are
outstanding, if the requirements for such exclusion set forth in Trust Indenture
Act Section 310(b)(1) are met. The provisions of Trust Indenture Act Section 310
shall apply to the Issuer and any other obligor of the Notes.

SECTION 7.11.    PREFERENTIAL COLLECTION OF CLAIMS AGAINST THE ISSUER.

          The Trustee, in its capacity as Trustee hereunder, shall comply with
Trust Indenture Act Section 311(a), excluding any creditor relationship listed
in Trust Indenture Act Section 311(b). A Trustee who has resigned or been
removed shall be subject to Trust Indenture Act Section 311(a) to the extent
indicated.

                                  ARTICLE EIGHT

                       DISCHARGE OF INDENTURE; DEFEASANCE

SECTION 8.01.    TERMINATION OF THE ISSUER'S OBLIGATIONS.

          The Issuer may terminate its obligations under the Notes and this
Indenture and the obligations of the Guarantors under the Note Guarantees and
the Indenture and this Indenture shall cease to be of further effect, except
those obligations referred to in the penultimate paragraph of this Section 8.01,
if:

          (1)    all the Notes that have been authenticated and delivered
     (except lost, stolen or destroyed Notes which have been replaced or paid
     and Notes for whose payment money has been deposited in trust or segregated
     and held in trust by the Issuer and thereafter repaid to the Issuer or
     discharged from this trust) have been delivered to the Trustee for
     cancellation, or

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          (2)    (a) all Notes not delivered to the Trustee for cancellation
     otherwise have become due and payable or have been called for redemption
     pursuant to Section 5 or Section 6 of the Notes and the Issuer has
     irrevocably deposited or caused to be deposited with the Trustee funds in
     trust sufficient to pay and discharge the entire Indebtedness (including
     all principal and accrued interest) on the Notes not theretofore delivered
     to the Trustee for cancellation,

          (b)    the Issuer has paid all sums payable by them under this
     Indenture,

          (c)    the Issuer has delivered irrevocable instructions to the
     Trustee to apply the deposited money toward the payment of the Notes at
     maturity or on the date of redemption, as the case may be, and

          (d)    Holders have a valid, perfected, exclusive security interest in
     this trust.

          In addition, the Issuer must deliver an Officer's Certificate and an
Opinion of Counsel stating that all conditions precedent to satisfaction and
discharge have been complied with.

          In the case of clause (2) of this Section 8.01, and subject to the
next sentence and notwithstanding the foregoing paragraph, the Issuer's
obligations in Sections 2.05, 2.06, 2.07, 2.08, 4.01, 4.02, 4.03 (as to legal
existence of the Issuer only), 7.07, 8.05 and 8.06 shall survive until the Notes
are no longer outstanding pursuant to the last paragraph of Section 2.08. After
the Notes are no longer outstanding, the Issuer's obligations in Sections 7.07,
8.05 and 8.06 shall survive.

          After such delivery or irrevocable deposit, the Trustee upon request
shall acknowledge in writing the discharge of the Issuer's obligations under the
Notes and this Indenture except for those surviving obligations specified above.

SECTION 8.02.    LEGAL DEFEASANCE AND COVENANT DEFEASANCE.

          (a)    The Issuer may, at its option and at any time, elect to have
either paragraph (b) or (c) below be applied to all outstanding Notes upon
compliance with the conditions set forth in Section 8.03.

          (b)    Upon the Issuer's exercise under Section 8.02(a) hereof of the
option applicable to this Section 8.02(b), the Issuer and the Guarantors shall,
subject to the satisfaction of the conditions set forth in Section 8.03, be
deemed to have been discharged from their obligations with respect to all
outstanding Notes on the date the conditions set forth below are satisfied
(hereinafter, "LEGAL DEFEASANCE"). For this purpose, Legal Defeasance means that
the Issuer and the Guarantors shall be deemed to have paid and discharged the
entire Indebtedness represented by the outstanding Notes and the Note
Guarantees, which shall thereafter be deemed to be "outstanding" only for the
purposes of Section 8.04 hereof and the other Sections of this Indenture
referred to in (i) and (ii) below, and to have satisfied all its other
obligations under such Notes and this Indenture and the Guarantors shall be
deemed to have satisfied all of their obligations under the Note Guarantees and
this Indenture (and the Trustee, on demand of and at the expense of the Issuer,
shall execute proper instruments acknowledging the same), except for the
following provisions which shall survive until otherwise terminated or
discharged hereunder:

          (i)    the rights of Holders of outstanding Notes to receive, solely
     from the trust fund described in Section 8.04 hereof, and as more fully set
     forth in such Section 8.04, payments in respect of the principal of,
     premium, if any, and interest on such Notes when such payments are due;

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          (ii)   the Issuer's obligations with respect to such Notes under
     Article Two and Section 4.02 hereof;

          (iii)  the rights, powers, trusts, duties and immunities of the
     Trustee hereunder and the Issuer's obligations in connection therewith; and

          (iv)   the provisions of this Article Eight applicable to Legal
     Defeasance.

          Subject to compliance with this Article Eight, the Issuer may exercise
its option under this Section 8.02(b) notwithstanding the prior exercise of its
option under Section 8.02(c) hereof.

          (c)    Upon the Issuer's exercise under paragraph (a) hereof of the
option applicable to this paragraph (c), the Issuer and the Guarantors shall,
subject to the satisfaction of the conditions set forth in Section 8.03 hereof,
be released from their respective obligations under the covenants contained in
Sections 4.03 (other than with respect to the legal existence of the Issuer),
4.04, 4.05, and 4.07 through 4.20, clause (3) of Section 5.01(a) and Article 11
hereof with respect to the outstanding Notes on and after the date the
conditions set forth in Section 8.03 are satisfied (hereinafter, "COVENANT
DEFEASANCE"), and the Notes shall thereafter be deemed not "outstanding" for the
purposes of any direction, waiver, consent or declaration or act of Holders (and
the consequences of any thereof) in connection with such covenants, but shall
continue to be deemed "outstanding" for all other purposes hereunder (it being
understood that such Notes shall not be deemed outstanding for accounting
purposes). For this purpose, Covenant Defeasance means that, with respect to the
outstanding Notes, the Issuer and the Guarantors may omit to comply with and
shall have no liability in respect of any term, condition or limitation set
forth in any such covenant, whether directly or indirectly, by reason of any
reference elsewhere herein to any such covenant or by reason of any reference in
any such covenant to any other provision herein or in any other document and
such omission to comply shall not constitute an Event of Default under Section
6.01 hereof, but, except as specified above, the remainder of this Indenture and
such Notes shall be unaffected thereby. In addition, upon the Issuer's exercise
under paragraph (a) hereof of the option applicable to this paragraph (c),
subject to the satisfaction of the conditions set forth in Section 8.03 hereof,
clauses (3), (4), (5), (6) and (9) of Section 6.01 hereof shall not constitute
Events of Default.

SECTION 8.03.    CONDITIONS TO LEGAL DEFEASANCE OR COVENANT DEFEASANCE.

          The following shall be the conditions to the application of either
Section 8.02(b) or 8.02(c) hereof to the outstanding Notes:

          (1)    the Issuer must irrevocably deposit with the Trustee, in trust,
     for the benefit of the Holders, U.S. Legal Tender, U.S. Government
     Obligations or a combination thereof, in such amounts as will be sufficient
     (without reinvestment), in the opinion of a nationally recognized firm of
     independent public accountants selected by the Issuer, to pay the principal
     of and interest and premium, if any, on the Notes on the stated date for
     payment or on the redemption date of the Notes and the holders must have a
     valid, perfected, exclusive security interest in such trust,

          (2)    in the case of Legal Defeasance, the Issuer shall have
     delivered to the Trustee an Opinion of Counsel in the United States
     reasonably acceptable to the Trustee confirming that:

                 (a)   the Issuer has received from, or there has been published
          by the Internal Revenue Service, a ruling, or

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                 (b)   since the date of this Indenture, there has been a change
          in the applicable U.S. federal income tax law,

     in either case to the effect that, and based thereon the Holders will not
     recognize income, gain or loss for U.S. federal income tax purposes as a
     result of such Legal Defeasance and will be subject to U.S. federal income
     tax on the same amounts, in the same manner and at the same times as would
     have been the case if such Legal Defeasance had not occurred,

          (3)    in the case of Covenant Defeasance, the Issuer shall have
     delivered to the Trustee an Opinion of Counsel in the United States
     reasonably acceptable to the Trustee confirming that the Holders will not
     recognize income, gain or loss for U.S. federal income tax purposes as a
     result of such Covenant Defeasance and will be subject to U.S. federal
     income tax on the same amounts, in the same manner and at the same times as
     would have been the case if such Covenant Defeasance had not occurred,

          (4)    no Default shall have occurred and be continuing on the date of
     such deposit (other than a Default resulting from the borrowing of funds to
     be applied to such deposit and the grant of any Lien securing such
     borrowing),

          (5)    the Legal Defeasance or Covenant Defeasance shall not result in
     a breach or violation of, or constitute a Default under any material
     agreement or instrument to which the Issuer or any of its Subsidiaries is a
     party or by which the Issuer or any of its Subsidiaries is bound (other
     than any such Default or default resulting solely from the borrowing of
     funds to be applied to such deposit and the grant of any Lien on such
     deposit in favor of the Trustee and/or the Holders),

          (6)    the Issuer shall have delivered to the Trustee an Officers'
     Certificate stating that the deposit was not made by it with the intent of
     preferring the Holders over any other creditors of the Issuer or with the
     intent of defeating, hindering, delaying or defrauding any other of its
     creditors, and

          (7)    the Issuer shall have delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that the conditions
     provided for in, in the case of the Officers' Certificate, clauses (1)
     through (6), as applicable, and, in the case of the Opinion of Counsel,
     clauses (1) (with respect to the validity and perfection of the security
     interest), (2), if applicable, and/or (3) and (5) of this Section 8.03 have
     been complied with.

SECTION 8.04.    APPLICATION OF TRUST MONEY.

          The Trustee or Paying Agent shall hold in trust U.S. Legal Tender
and U.S. Government Obligations deposited with it pursuant to this Article
Eight, and shall apply the deposited U.S. Legal Tender and the money from U.S.
Government Obligations in accordance with this Indenture to the payment of the
principal of and the interest on the Notes. The Trustee shall be under no
obligation to invest said U.S. Legal Tender and U.S. Government Obligations,
except as it may agree with the Issuer.

          The Issuer shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the U.S. Legal Tender and U.S.
Government Obligations deposited pursuant to Section 8.03 or the principal and
interest received in respect thereof, other than any such tax, fee or other
charge which by law is for the account of the Holders of the outstanding Notes.

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          Anything in this Article Eight to the contrary notwithstanding, the
Trustee shall promptly deliver or pay to the Issuer from time to time upon the
Issuer's request any U.S. Legal Tender and U.S. Government Obligations held by
it as provided in Section 8.03 which, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee, are in excess of the amount thereof that would
then be required to be deposited to effect an equivalent Legal Defeasance or
Covenant Defeasance.

SECTION 8.05.    REPAYMENT TO THE ISSUER.

          The Trustee and the Paying Agent shall pay to the Issuer upon request
any money held by them for the payment of principal or interest that remains
unclaimed for two years; PROVIDED, HOWEVER, that the Trustee or such Paying
Agent, before being required to make any payment, may at the expense of the
Issuer cause to be published once in a newspaper of general circulation in the
City of New York or mail to each Holder entitled to such money notice that such
money remains unclaimed and that after a date specified therein which shall be
at least 30 days from the date of such publication or mailing any unclaimed
balance of such money then remaining will be repaid to the Issuer. After payment
to the Issuer, Holders entitled to such money must look to the Issuer for
payment as general creditors unless an applicable law designates another Person.

SECTION 8.06.    REINSTATEMENT.

          If the Trustee or Paying Agent is unable to apply any U.S. Legal
Tender and U.S. Government Obligations in accordance with this Article Eight by
reason of any legal proceeding or by reason of any order or judgment of any
court or governmental authority enjoining, restraining or otherwise prohibiting
such application, or if the funds deposited with the Trustee to effect Covenant
Defeasance are insufficient to pay the principal of, and interest on, the Notes
when due, the Issuer's obligations under this Indenture, and the Notes shall be
revived and reinstated as though no deposit had occurred pursuant to this
Article Eight until such time as the Trustee or Paying Agent is permitted to
apply all such U.S. Legal Tender and U.S. Government Obligations in accordance
with this Article Eight; PROVIDED, HOWEVER, that if the Issuer has made any
payment of interest on, or principal of, any Notes because of the reinstatement
of its obligations, the Issuer shall be subrogated to the rights of the Holders
of such Notes to receive such payment from the U.S. Legal Tender and U.S.
Government Obligations held by the Trustee or Paying Agent.

                                  ARTICLE NINE

                       AMENDMENTS, SUPPLEMENTS AND WAIVERS

SECTION 9.01.    WITHOUT CONSENT OF HOLDERS.

          Subject to Section 9.03, the Issuer, the Guarantors and the Trustee,
together, may amend or supplement this Indenture, the Notes or the Note
Guarantees without notice to or consent of any Holder:

          (1)    to cure any ambiguity, defect or inconsistency;

          (2)    to provide for uncertificated Notes in addition to or in place
     of certificated Notes;

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          (3)    to provide for the assumption of the Issuer's or a Guarantor's
     obligations to the Holders of the Notes in the case of a merger,
     consolidation or sale of all or substantially all of the assets, in
     accordance with Article Five;

          (4)    to release any Guarantor from any of its obligations under its
     Note Guarantee or this Indenture (to the extent permitted by this
     Indenture);

          (5)    to make any change that would not materially adversely affect
     the rights of any Holder; or

          (6)    to comply with requirements of the SEC in order to effect or
     maintain the qualification of this Indenture under the Trust Indenture Act;

PROVIDED, HOWEVER, that the Issuer has delivered to the Trustee an Opinion of
Counsel and an Officers' Certificate, each stating that such amendment or
supplement complies with the provisions of this Section 9.01.

SECTION 9.02.    WITH CONSENT OF HOLDERS.

          (a)    Subject to Sections 6.07 and 9.03, the Issuer, the Guarantors
and the Trustee, together, with the written consent of the Holder or Holders of
a majority in aggregate principal amount of the outstanding Notes may amend or
supplement this Indenture, the Notes or the Note Guarantees, without notice to
any other Holders. Subject to Sections 6.07 and 9.03, the Holder or Holders of a
majority in aggregate principal amount of the outstanding Notes may waive
compliance with any provision of this Indenture, the Notes or the Note
Guarantees without notice to any other Holders; PROVIDED, HOWEVER, that after
the occurrence of a Change of Control, no such amendment may, without the
consent of the Holders of two-thirds in aggregate principal amount of Notes then
outstanding, amend the obligation of the Issuer under Section 4.07 or the
related definitions that could adversely affect the rights of any Holder.

          (b)    Notwithstanding Section 9.02(a), without the consent of each
Holder affected, no amendment or waiver may:

          (1)    reduce, or change the maturity, of the principal of any Note;

          (2)    reduce the rate of or extend the time for payment of interest
     on any Note;

          (3)    reduce any premium payable upon optional redemption of the
     Notes, change the date on which any Notes are subject to redemption or
     otherwise alter the provisions with respect to the redemption of the Notes
     (other than provisions relating to the purchase of Notes set forth in
     Section 4.07 and Section 4.11);

          (4)    make any Note payable in money or currency other than that
     stated in the Notes;

          (5)    modify or change any provision of this Indenture or the related
     definitions affecting the subordination of the Notes or any Note Guarantee
     in a manner that adversely affects the Holders in any material respect;

          (6)    reduce the percentage of Holders necessary to consent to an
     amendment or waiver to this Indenture or the Notes;

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          (7)    waive a default in the payment of principal of or premium or
     interest on any Notes (except a rescission of acceleration of the Notes by
     the Holders thereof as provided in this Indenture and a waiver of the
     payment default that resulted from such acceleration);

          (8)    impair the rights of Holders to receive payments of principal
     of or interest on the Notes on or after the due date therefor;

          (9)    release any Guarantor which is a Significant Subsidiary from
     any of its obligations under its Note Guarantee or this Indenture, except
     as permitted by this Indenture; or

         (10)    make any change in these amendment and waiver provisions.

          (c)    It shall not be necessary for the consent of the Holders under
this Section to approve the particular form of any proposed amendment,
supplement or waiver but it shall be sufficient if such consent approves the
substance thereof.

          (d)    A consent to any amendment, supplement or waiver under this
Indenture by any Holder given in connection with an exchange (in the case of an
exchange offer) or a tender (in the case of a tender offer) of such Holder's
Notes will not be rendered invalid by such tender or exchange.

          (e)    After an amendment, supplement or waiver under this Section
9.02 becomes effective, the Issuer shall mail, or cause to be mailed, to the
Holders affected thereby a notice briefly describing the amendment, supplement
or waiver. Any failure of the Issuer to mail such notice, or any defect therein,
shall not, however, in any way impair or affect the validity of any such
amendment, supplement or waiver.

SECTION 9.03.    EFFECT ON SENIOR DEBT.

          No amendment of, or supplement or waiver to, this Indenture shall
adversely affect the rights of any holder of Senior Debt or Guarantor Senior
Debt under Article Ten and Section 11.02, without the consent of such holder or
its Representative.

SECTION 9.04.    COMPLIANCE WITH THE TRUST INDENTURE ACT.

          From the date on which this Indenture is qualified under the Trust
Indenture Act, every amendment, waiver or supplement of this Indenture, the
Notes or the Note Guarantees shall comply with the Trust Indenture Act as then
in effect.

SECTION 9.05.    REVOCATION AND EFFECT OF CONSENTS.

          Until an amendment, waiver or supplement becomes effective, a consent
to it by a Holder is a continuing consent by the Holder and every subsequent
Holder of a Note or portion of a Note that evidences the same debt as the
consenting Holder's Note, even if notation of the consent is not made on any
Note. However, any such Holder or subsequent Holder may revoke the consent as to
his Note or portion of his Note by notice to the Trustee or the Issuer received
before the date on which the Trustee receives an Officers' Certificate
certifying that the Holders of the requisite principal amount of Notes have
consented (and not theretofore revoked such consent) to the amendment,
supplement or waiver.

          The Issuer may, but shall not be obligated to, fix a record date for
the purpose of determining the Holders entitled to consent to any amendment,
supplement or waiver, which record date shall

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be at least 30 days prior to the first solicitation of such consent. If a record
date is fixed, then notwithstanding the last sentence of the immediately
preceding paragraph, those Persons who were Holders at such record date (or
their duly designated proxies), and only those Persons, shall be entitled to
revoke any consent previously given, whether or not such Persons continue to be
Holders after such record date. No such consent shall be valid or effective for
more than 90 days after such record date. The Issuer shall inform the Trustee in
writing of the fixed record date if applicable.

          After an amendment, supplement or waiver becomes effective, it shall
bind every Holder, unless it makes a change described in any of clauses (1)
through (10) of Section 9.02(b), in which case, the amendment, supplement or
waiver shall bind only each Holder of a Note who has consented to it and every
subsequent Holder of a Note or portion of a Note that evidences the same debt as
the consenting Holder's Note; PROVIDED, HOWEVER, that any such waiver shall not
impair or affect the right of any Holder to receive payment of principal of, and
interest on, a Note, on or after the respective due dates therefor, or to bring
suit for the enforcement of any such payment on or after such respective dates
without the consent of such Holder.

SECTION 9.06.    NOTATION ON OR EXCHANGE OF NOTES.

          If an amendment, supplement or waiver changes the terms of a Note, the
Issuer may require the Holder of the Note to deliver it to the Trustee. The
Issuer shall provide the Trustee with an appropriate notation on the Note about
the changed terms and cause the Trustee to return it to the Holder at the
Issuer's expense. Alternatively, if the Issuer or the Trustee so determines, the
Issuer in exchange for the Note shall issue, and the Trustee shall authenticate,
a new Note that reflects the changed terms. Failure to make the appropriate
notation or issue a new Note shall not affect the validity and effect of such
amendment, supplement or waiver.

SECTION 9.07.    TRUSTEE TO SIGN AMENDMENTS, ETC.

          The Trustee shall execute any amendment, supplement or waiver
authorized pursuant to this Article Nine; PROVIDED, HOWEVER, that the Trustee
may, but shall not be obligated to, execute any such amendment, supplement or
waiver which affects the Trustee's own rights, duties or immunities under this
Indenture. The Trustee shall be entitled to receive, and shall be fully
protected in relying upon, an Opinion of Counsel and an Officers' Certificate
each stating that the execution of any amendment, supplement or waiver
authorized pursuant to this Article Nine is authorized or permitted by this
Indenture and constitutes legal, valid and binding obligations of the Issuer
enforceable in accordance with its terms, subject to customary exceptions. Such
Opinion of Counsel shall be at the expense of the Issuer.

                                   ARTICLE TEN

                             SUBORDINATION OF NOTES

SECTION 10.01.   NOTES SUBORDINATED TO SENIOR DEBT.

          Anything herein to the contrary notwithstanding, each of the Issuer,
for itself and its successors, and each Holder, by his or her acceptance of
Notes, agrees that the payment of all Obligations owing to the Holders in
respect of the Notes is subordinated, to the extent and in the manner provided
in this Article Ten, to the prior payment in full of all Senior Debt (including
all Obligations under the Credit Agreement) in cash, whether outstanding on the
Issue Date or thereafter incurred. Notwithstanding anything in this Article Ten
to the contrary, payments and distributions (A) of Permitted Junior Securities
and (B) made relating to the Notes from the trust established pursuant to
Article Eight shall not be so subordi-

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nated in right of payment, so long as, with respect to (B), (i) the conditions
specified in Article Eight are satisfied on the date of any deposit pursuant to
said trust and (ii) such payments and distributions did not violate the
provisions of this Article Ten when made.

          This Article Ten shall constitute a continuing offer to all Persons
who become holders of, or continue to hold, Senior Debt, such provisions are
made for the benefit of the holders of Senior Debt and such holders are made
obligees hereunder and any one or more of them may enforce such provisions.

SECTION 10.02.   SUSPENSION OF PAYMENT WHEN SENIOR DEBT IS IN DEFAULT.

          (a)    If any default occurs and is continuing in the payment when
due, whether at maturity, upon any redemption, by declaration or otherwise, of
any principal of, interest on, unpaid drawings for letters of credit issued in
respect of, or fees with respect to, any Senior Debt (a "PAYMENT DEFAULT"), then
the Issuer shall not (x) make any payment or distribution of any kind or
character with respect to any Obligations on or relating to the Notes or (y)
acquire any of the Notes for cash or assets or otherwise (other than, in either
case, Permitted Junior Securities).

          (b)    If any other event of default (other than a Payment Default)
occurs and is continuing with respect to any Designated Senior Debt (as such
event of default is defined in the instrument creating or evidencing such
Designated Senior Debt) permitting the holders of such Designated Senior Debt
then outstanding to accelerate the maturity thereof (a "NON-PAYMENT DEFAULT")
and if the Representative for the respective issue of Designated Senior Debt
(including, as applicable, the administrative agent under the Credit Agreement)
gives written notice of the Non-Payment Default to the Trustee stating that such
notice is a payment blockage notice (a "PAYMENT BLOCKAGE NOTICE"), then during
the period (the "PAYMENT BLOCKAGE PERIOD") beginning upon the delivery of such
Payment Blockage Notice and ending on the earliest of (1) the date on which all
such Non-Payment Defaults are cured or waived, (2) 179 days after the date on
which the applicable Payment Blockage Notice is received or (3) the date on
which the Trustee receives notice from the Representative for such Designated
Senior Debt rescinding the Payment Blockage Notice (unless in each case the
maturity of any Designated Senior Debt has been accelerated), the Issuer shall
not (x) make any payment of any kind or character with respect to any
Obligations on or with respect to the Notes or (y) acquire any of the Notes for
cash or assets or otherwise (other than, in either case, Permitted Junior
Securities). Notwithstanding anything herein to the contrary, (x) in no event
will a Payment Blockage Period extend beyond 179 days from the date the
applicable Payment Blockage Notice is received by the Trustee and (y) no new
Payment Blockage Notice may be delivered unless and until 360 days have elapsed
since the effectiveness of the immediately prior Payment Blockage Notice. For
all purposes of this Section 10.02(b), no Non-Payment Default which existed or
was continuing on the date of the commencement of any Payment Blockage Period
with respect to the Designated Senior Debt shall be, or be made, the basis for
the commencement of a second Payment Blockage Period by the Representative of
such Designated Senior Debt whether or not within a period of 360 consecutive
days, unless such Non-Payment Default shall have been cured or waived for a
period of not less than 90 consecutive days. Any subsequent action, or any
breach of any financial covenants for a period ending after the date of
commencement of such Payment Blockage Period that, in either case, would give
rise to a Non-Payment Default pursuant to any provisions under which a
Non-Payment Default previously existed or was continuing shall constitute a new
Non-Payment Default for this purpose.

          (c)    In the event that, notwithstanding the foregoing, any payment
shall be received by the Trustee or any Holder when such payment is prohibited
by the foregoing provisions of this Section 10.02, such payment shall be held in
trust for the benefit of, and shall be paid over or delivered to, the holders of
Senior Debt (pro rata to such holders on the basis of the respective amount of
Senior Debt held by such holders) or their respective Representatives, as their
respective interests may appear. The Trustee

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shall be entitled to rely on information regarding amounts outstanding on the
Senior Debt, if any, received from the holders of the Senior Debt (or their
Representatives).

          Nothing contained in this Article Ten shall limit the right of the
Trustee or the Holders of the Notes to take any action to accelerate the
maturity of the Notes pursuant to Section 6.02 or to pursue any rights or
remedies hereunder; PROVIDED, HOWEVER, that all Senior Debt thereafter due or
declared to be due shall first be paid in full in cash or cash equivalents
before the Holders are entitled to receive any payment of any kind or character
with respect to Obligations on the Notes.

SECTION 10.03.   NOTES SUBORDINATED TO PRIOR PAYMENT OF ALL SENIOR DEBT
                 ON DISSOLUTION, LIQUIDATION OR REORGANIZATION OF THE ISSUER.

          (a)    Upon any payment or distribution of assets of the Issuer or any
of its Subsidiaries of any kind or character, whether in cash, assets or
securities, to creditors upon any total or partial liquidation, dissolution,
winding-up, assignment for the benefit of creditors or marshaling of assets and
liabilities of the Issuer or in a bankruptcy, reorganization, insolvency,
receivership or other similar proceeding relating to the Issuer or its assets,
whether voluntary or involuntary, all Obligations due on all Senior Debt
(including interest accruing after the commencement of any bankruptcy or other
like proceeding at the rate specified in the Credit Agreement, whether or not
such interest is an allowed claim in any such proceeding) shall first be paid in
full in cash, or such payment duly provided for to the satisfaction of the
holders of Senior Debt, before any payment or distribution of any kind or
character is made on account of any Obligations on or relating to the Notes, or
for the acquisition of any of the Notes for cash or assets or otherwise. Upon
any such dissolution, winding-up, liquidation, reorganization, receivership or
similar proceeding, any payment or distribution of assets of the Issuer or any
of its Subsidiaries of any kind or character, whether in cash, assets or
securities, to which the Holders of the Notes or the Trustee under this
Indenture would be entitled, except for the provisions hereof, shall be paid by
the Issuer or by any receiver, trustee in bankruptcy, liquidating trustee, agent
or other Person making such payment or distribution, or by the Holders or by the
Trustee under this Indenture if received by them, directly to the holders of
Senior Debt (PRO RATA to such holders on the basis of the respective amounts of
Senior Debt held by such holders) or their respective Representatives, or to the
trustee or trustees under any indenture pursuant to which any of such Senior
Debt may have been issued, as their respective interests may appear, for
application to the payment of Senior Debt remaining unpaid until all such Senior
Debt has been paid in full in cash after giving effect to any concurrent
payment, distribution or provision therefor to or for the holders of Senior
Debt.

          (b)    To the extent any payment of Senior Debt (whether by or on
behalf of the Issuer, as proceeds of security or enforcement of any right of
setoff or otherwise) is declared to be fraudulent or preferential, set aside or
required to be paid to any receiver, trustee in bankruptcy, liquidating trustee,
agent or other similar Person under any bankruptcy, insolvency, receivership,
fraudulent conveyance or similar law, then, if such payment is recovered by, or
paid over to, such receiver, trustee in bankruptcy, liquidating trustee, agent
or other similar Person, the Senior Debt or part thereof originally intended to
be satisfied shall be for purpose of this Article Ten deemed to be reinstated
and outstanding as if such payment had not occurred.

          It is further agreed that any diminution (whether pursuant to court
decree or otherwise, including without limitation for any of the reasons
described in the preceding sentence) of the Issuer's obligation to make any
distribution or payment pursuant to any Senior Debt, except to the extent such
diminution occurs by reason of the repayment (which has not been disgorged or
returned) of such Senior Debt in cash or cash equivalents, shall have no force
or effect for purposes of the subordination provisions

                                      -77-
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contained in this Article Ten, with any turnover of payments as otherwise
calculated pursuant to this Article Ten to be made as if no such diminution had
occurred.

          (c)    In the event that, notwithstanding the foregoing, any payment
or distribution of assets of the Issuer of any kind or character, whether in
cash, assets or securities, shall be received by any Holder when such payment or
distribution is prohibited by this Section 10.03, such payment or distribution
shall be held in trust for the benefit of, and shall be paid over or delivered
to, the holders of Senior Debt (PRO RATA to such holders on the basis of the
respective amount of Senior Debt held by such holders) or their respective
Representatives, or to the trustee or trustees under any indenture pursuant to
which any of such Senior Debt may have been issued, as their respective
interests may appear, for application to the payment of Senior Debt remaining
unpaid until all such Senior Debt has been paid in full in cash or cash
equivalents, after giving effect to any concurrent payment, distribution or
provision therefor to or for the holders of such Senior Debt.

          (d)    The consolidation of the Issuer with, or the merger of the
Issuer with or into, another Person or the liquidation or dissolution of the
Issuer following the conveyance or transfer of all or substantially all of its
assets, to another Person upon the terms and conditions provided in Article Five
hereof shall not be deemed a dissolution, winding-up, liquidation or
reorganization for the purposes of this Section if such other Person shall, as a
part of such consolidation, merger, conveyance or transfer, assume the Issuer's
obligations hereunder in accordance with Article Five hereof.

SECTION 10.04.   PAYMENTS MAY BE MADE ON NOTES.

          Nothing contained in this Article Ten or elsewhere in this Indenture
shall prevent (i) the Issuer, except under the conditions described in Sections
10.02 and 10.03, from making payments at any time for the purpose of making
payments of principal of, and interest on, the Notes, or from depositing with
the Trustee any moneys for such payments, or (ii) in the absence of actual
knowledge by the Trustee that a given payment would be prohibited by Section
10.02 or 10.03, the application by the Trustee of any moneys deposited with it
for the purpose of making such payments of principal of, and interest on, the
Notes to the Holders entitled thereto unless at least two Business Days prior to
the date upon which such payment would otherwise become due and payable a
Responsible Officer of the Trustee shall have actually received the written
notice provided for in the first sentence of Section 10.02(b) or in Section
10.07; PROVIDED, HOWEVER, that, notwithstanding the foregoing, the Holders
receiving any payments made in contravention of Section 10.02 and/or 10.03 (and
the respective such payments) shall otherwise be subject to the provisions of
Section 10.02 and Section 10.03. Notwithstanding anything to the contrary
contained in this Article Ten or elsewhere in this Indenture, payments and
distributions from the funds deposited pursuant to Article Eight will be
permitted to be made and will not be subject to the provisions of this Article
Ten so long as such funds were deposited in accordance with the provisions of
Article Eight and did not violate the provisions of this Article Ten when such
funds were so deposited. The Issuer shall give prompt written notice to the
Trustee of any dissolution, winding-up, liquidation or reorganization of the
Issuer, although any delay or failure to give any such notice shall have no
effect on the subordination provisions contained herein.

SECTION 10.05.   HOLDERS TO BE SUBROGATED TO RIGHTS OF HOLDERS OF SENIOR DEBT.

          Subject to the payment in full of all Senior Debt in cash or cash
equivalents, the Holders of the Notes shall be subrogated to the rights of the
holders of Senior Debt to receive payments or distributions of cash, assets or
securities of the Issuer applicable to the Senior Debt until the Notes shall be
paid in full; and, for the purposes of such subrogation, no such payments or
distributions to the holders of the Senior Debt by or on behalf of the Issuer,
or by or on behalf of the Holders by virtue of this Article Ten,

                                      -78-
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which otherwise would have been made to the Holders shall, as between the Issuer
and the Holders, be deemed to be a payment by the Issuer to or on account of the
Senior Debt, it being understood that the provisions of this Article Ten are and
are intended solely for the purpose of defining the relative rights of the
Holders, on the one hand, and the holders of Senior Debt, on the other hand.

SECTION 10.06.   OBLIGATIONS OF THE ISSUER UNCONDITIONAL.

          Nothing contained in this Article Ten or elsewhere in this Indenture
or in the Notes is intended to or shall impair, as between the Issuer, and the
Holders, the obligation of the Issuer, which is absolute and unconditional, to
pay to the Holders the principal of, and any interest on, the Notes as and when
the same shall become due and payable in accordance with their terms, or is
intended to or shall affect the relative rights of the Holders and creditors of
the Issuer other than the holders of the Senior Debt, nor shall anything herein
or therein prevent the Holder of any Note or the Trustee on its behalf from
exercising all remedies otherwise permitted by applicable law upon default under
this Indenture, subject to the rights, if any, of the holders of Senior Debt in
respect of cash, assets or securities of the Issuer received upon the exercise
of any such remedy.

SECTION 10.07.   NOTICE TO TRUSTEE.

          The Issuer shall give prompt written notice to the Trustee of any fact
known to the Issuer which would prohibit the making of any payment to or by the
Trustee in respect of the Notes pursuant to the provisions of this Article Ten,
although any delay or failure to give any such notice shall have no effect on
the subordination provisions contained herein. Regardless of anything to the
contrary contained in this Article Ten or elsewhere in this Indenture, the
Trustee shall not be charged with knowledge of the existence of any default or
event of default with respect to any Senior Debt or of any other facts which
would prohibit the making of any payment to or by the Trustee unless and until
the Trustee shall have received notice in writing from the Issuer, or from a
holder of Senior Debt or a Representative therefor and, prior to the receipt of
any such written notice, the Trustee shall be entitled to assume (in the absence
of actual knowledge to the contrary) that no such facts exist. The Trustee shall
be entitled to rely on the delivery to it of any notice pursuant to this Section
10.07 to establish that such notice has been given by a holder of Senior Debt
(or a Representative thereof).

          In the event that the Trustee determines in good faith that any
evidence is required with respect to the right of any Person as a holder of
Senior Debt to participate in any payment or distribution pursuant to this
Article Ten, the Trustee may request such Person to furnish evidence to the
satisfaction of the Trustee as to the amounts of Senior Debt held by such
Person, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such
Person under this Article Ten, and if such evidence is not furnished the Trustee
may defer any payment to such Person pending judicial determination as to the
right of such Person to receive such payment.

SECTION 10.08.   RELIANCE ON JUDICIAL ORDER OR CERTIFICATE OF LIQUIDATING AGENT.

          Upon any payment or distribution of assets of the Issuer referred to
in this Article Ten, the Trustee, subject to the provisions of Article Seven
hereof, and the Holders of the Notes shall be entitled to rely upon any order or
decree made by any court of competent jurisdiction in which any insolvency,
bankruptcy, receivership, dissolution, winding-up, liquidation, reorganization
or similar case or proceeding is pending, or upon a certificate of the receiver,
trustee in bankruptcy, liquidating trustee, assignee for the benefit of
creditors, agent or other person making such payment or distribution, delivered
to the Trustee or the Holders of the Notes, for the purpose of ascertaining the
persons entitled to participate in such payment or distribution, the holders of
the Senior Debt and other Indebtedness of the Issuer, the

                                      -79-
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amount thereof or payable thereon, the amount or amounts paid or distributed
thereon and all other facts pertinent thereto or to this Article Ten.

SECTION 10.09.   TRUSTEE'S RELATION TO SENIOR DEBT.

          The Trustee and any agent of the Issuer or the Trustee shall be
entitled to all the rights set forth in this Article Ten with respect to any
Senior Debt which may at any time be held by it in its individual or any other
capacity to the same extent as any other holder of Senior Debt and nothing in
this Indenture shall deprive the Trustee or any such agent of any of its rights
as such holder.

          With respect to the holders of Senior Debt, the Trustee undertakes to
perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article Ten, and no implied covenants or
obligations with respect to the holders of Senior Debt shall be read into this
Indenture against the Trustee. The Trustee shall not be deemed to owe any
fiduciary duty to the holders of Senior Debt.

          Whenever a distribution is to be made or a notice given to holders or
owners of Senior Debt, the distribution may be made and the notice may be given
to their Representative, if any.

SECTION 10.10.   SUBORDINATION RIGHTS NOT IMPAIRED BY ACTS OR OMISSIONS OF THE
                 ISSUER OR HOLDERS OF SENIOR DEBT.

          No right of any present or future holders of any Senior Debt to
enforce subordination as provided herein shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Issuer or
by any act or failure to act, in good faith, by any such holder, or by any
noncompliance by the Issuer with the terms of this Indenture, regardless of any
knowledge thereof, which any such holder may have or otherwise be charged with.

          Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of or notice to the Trustee, without incurring responsibility to the
Trustee or the Holders of the Notes and without impairing or releasing the
subordination provided in this Article Ten or the obligations hereunder of the
Holders of the Notes to the holders of the Senior Debt, do any one or more of
the following: (i) change the manner, place or terms of payment or extend the
time of payment of, or renew or alter, Senior Debt, or otherwise amend or
supplement in any manner Senior Debt, or any instrument evidencing the same or
any agreement under which Senior Debt is outstanding; (ii) sell, exchange,
release or otherwise deal with any property pledged, mortgaged or otherwise
securing Senior Debt; (iii) release any Person liable in any manner for the
payment or collection of Senior Debt; and (iv) exercise or refrain from
exercising any rights against the Issuer and any other Person.

SECTION 10.11.   HOLDERS AUTHORIZE TRUSTEE TO EFFECTUATE SUBORDINATION OF NOTES.

          Each Holder of the Notes by its acceptance of them authorizes and
expressly directs the Trustee on its behalf to take such action as may be
necessary or appropriate to effectuate, as between the holders of Senior Debt
and the Holders of the Notes, the subordination provided in this Article Ten,
and appoints the Trustee its attorney-in-fact for such purposes, including, in
the event of any dissolution, winding-up, liquidation or reorganization of the
Issuer (whether in bankruptcy, insolvency, receivership, reorganization or
similar proceedings or upon an assignment for the benefit of credits or
otherwise) tending towards liquidation of the business and assets of the Issuer,
the filing of a claim for the unpaid balance of its Notes and accrued interest
in the form required in those proceedings.

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<Page>

          If the Trustee does not file a proper claim or proof of debt in the
form required in such proceeding prior to 30 days before the expiration of the
time to file such claim or claims, then the holders of the Senior Debt or their
Representative are or is hereby authorized to have the right to file and are or
is hereby authorized to file an appropriate claim for and on behalf of the
Holders of said Notes. Nothing herein contained shall be deemed to authorize the
Trustee or the holders of Senior Debt or their Representative to authorize,
consent to, accept or adopt on behalf of any Holder any plan of reorganization,
arrangement, adjustment or composition affecting the Notes or the rights of any
Holder thereof, or to authorize the Trustee or the holders of Senior Debt or
their Representative to vote in respect of the claim of any Holder in any such
proceeding.

SECTION 10.12.   THIS ARTICLE TEN NOT TO PREVENT EVENTS OF DEFAULT.

          The failure to make a payment on account of principal of, or interest
on, the Notes by reason of any provision of this Article Ten will not be
construed as preventing the occurrence of an Event of Default.

SECTION 10.13.   TRUSTEE'S COMPENSATION NOT PREJUDICED.

          Nothing in this Article Ten will apply to amounts due to the Trustee
(other than payments of Obligations owing to Holders in respect of the Notes)
pursuant to other Sections of this Indenture.

                                 ARTICLE ELEVEN

                                 NOTE GUARANTEE

SECTION 11.01.   UNCONDITIONAL GUARANTEE.

          Subject to the provisions of this Article Eleven, each of the
Guarantors hereby, jointly and severally, unconditionally and irrevocably
guarantees to each Holder of a Note authenticated and delivered by the Trustee
and to the Trustee and its successors and assigns, irrespective of the validity
and enforceability of this Indenture, the Notes or the obligations of the Issuer
or any other Guarantors to the Holders or the Trustee hereunder or thereunder:
(a) (x) the due and punctual payment of the principal of, premium, if any, and
interest on the Notes when and as the same shall become due and payable, whether
at maturity, upon redemption or repurchase, by acceleration or otherwise, (y)
the due and punctual payment of interest on the overdue principal and (to the
extent permitted by law) interest, if any, on the Notes and (z) the due and
punctual payment and performance of all other obligations of the Issuer and all
other obligations of the other Guarantors (including under the Note Guarantees),
in each case, to the Holders or the Trustee hereunder or thereunder (including
amounts due the Trustee under Section 7.07 hereof), all in accordance with the
terms hereof and thereof (collectively, the "GUARANTEE OBLIGATIONS"); and (b) in
case of any extension of time of payment or renewal of any Notes or any of such
other obligations, the due and punctual payment and performance of Guarantee
Obligations in accordance with the terms of the extension or renewal, whether at
maturity, upon redemption or repurchase, by acceleration or otherwise. Failing
payment when due of any amount so guaranteed, or failing performance of any
other obligation of the Issuer to the Holders under this Indenture or under the
Notes, for whatever reason, each Guarantor shall be obligated to pay, or to
perform or cause the performance of, the same immediately. A Default under this
Indenture or the Notes shall constitute an event of default under the Note
Guarantees, and shall entitle the Holders of Notes to accelerate the obligations
of the Guarantors thereunder in the same manner and to the same extent as the
obligations of the Issuer.

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          Each of the Guarantors hereby agrees that its obligations hereunder
shall be unconditional, irrespective of the validity, regularity or
enforceability of the Notes or this Indenture, the absence of any action to
enforce the same, any waiver or consent by any Holder of the Notes with respect
to any provisions hereof or thereof, any release of any other Guarantor, the
recovery of any judgment against the Issuer, any action to enforce the same,
whether or not a Note Guarantee is affixed to any particular Note, or any other
circumstance which might otherwise constitute a legal or equitable discharge or
defense of a Guarantor. Each of the Guarantors hereby waives the benefit of
diligence, presentment, demand of payment, filing of claims with a court in the
event of insolvency or bankruptcy of the Issuer, any right to require a
proceeding first against the Issuer, protest, notice and all demands whatsoever
and covenants that its Note Guarantee shall not be discharged except by complete
performance of the obligations contained in the Notes, this Indenture and its
Note Guarantee. Each Note Guarantee is a guarantee of payment and not of
collection. If any Holder or the Trustee is required by any court or otherwise
to return to the Issuer or to any Guarantor, or any custodian, trustee,
liquidator or other similar official acting in relation to the Issuer or such
Guarantor, any amount paid by the Issuer or such Guarantor to the Trustee or
such Holder, each Note Guarantee, to the extent theretofore discharged, shall be
reinstated in full force and effect. Each Guarantor further agrees that, as
between it, on the one hand, and the Holders of Notes and the Trustee, on the
other hand, (a) subject to this Article Eleven, the maturity of the obligations
guaranteed hereby may be accelerated as provided in Article Six for the purposes
of the Note Guarantees, notwithstanding any stay, injunction or other
prohibition preventing such acceleration in respect of the obligations
guaranteed hereby, and (b) in the event of any acceleration of such obligations
as provided in Article Six, such obligations (whether or not due and payable)
shall forthwith become due and payable by the Guarantors for the purpose of the
Note Guarantees.

SECTION 11.02.   SUBORDINATION OF NOTE GUARANTEE.

          The obligations of each Guarantor under its Note Guarantee pursuant to
this Article Eleven shall be junior and subordinated to the prior payment in
full of the Guarantor Senior Debt of such Guarantor, whether outstanding on the
Issue Date or thereafter incurred, in cash on the same basis as the Notes are
junior and subordinated to Senior Debt of the Issuer. For the purposes of the
foregoing sentence, the Trustee and the Holders shall have the right to receive
and/or retain payments by any of the Guarantors only at such times as they may
receive and/or retain payments in respect of the Notes pursuant to this
Indenture, including Article Ten. In addition to the foregoing provisions of
this Section 11.02, all of the covenants, obligations and agreements contained
in Article Ten (together with related definitions) shall be deemed incorporated
in this Section 11.02, MUTATIS MUTANDIS, as if references to the Issuer therein
are references to each Guarantor herein and references to Senior Debt therein
are references to the Guarantor Senior Debt of such Guarantor herein.

SECTION 11.03.   LIMITATION ON GUARANTOR LIABILITY.

          Each Guarantor, and by its acceptance of Notes, each Holder, hereby
confirms that it is the intention of all such parties that the Note Guarantee of
such Guarantor not constitute a fraudulent transfer or conveyance for purposes
of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent
Transfer Act or any similar federal, foreign or state law to the extent
applicable to any Note Guarantee. To effectuate the foregoing intention, the
Trustee, the Holders and the Guarantors hereby irrevocably agree that the
obligations of such Guarantor under its Note Guarantee and this Article Eleven
shall be limited to the maximum amount as will, after giving effect to all other
contingent and fixed liabilities of such Guarantor (including any guarantee
under the Credit Agreement) that are relevant under such laws, and after giving
effect to any collections from, rights to receive contribution from or payments
made by or on behalf of any other Guarantor in respect of the obligations of
such other Guarantor under this Article Eleven, result in the obligations of
such Guarantor under its Note Guarantee not

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constituting a fraudulent transfer or conveyance. Each Guarantor that makes a
payment for distribution under its Note Guarantee is entitled to a contribution
from each other Guarantor in a PRO RATA amount based on the adjusted net assets
of each Guarantor.

SECTION 11.04.   EXECUTION AND DELIVERY OF NOTE GUARANTEE.

          To further evidence its Note Guarantee set forth in Section 11.01,
each Guarantor hereby agrees that a notation of such Note Guarantee,
substantially in the form of EXHIBIT E hereto, shall be endorsed on each Note
authenticated and delivered by the Trustee. Such Note Guarantee shall be
executed on behalf of each Guarantor by either manual or facsimile signature of
one Officer or other person duly authorized by all necessary corporate action of
each Guarantor who shall have been duly authorized to so execute by all
requisite corporate action. The validity and enforceability of any Note
Guarantee shall not be affected by the fact that it is not affixed to any
particular Note.

          Each of the Guarantors hereby agrees that its Note Guarantee set forth
in Section 11.01 shall remain in full force and effect notwithstanding any
failure to endorse on each Note a notation of such Note Guarantee.

          If an Officer of a Guarantor whose signature is on this Indenture or a
Note Guarantee no longer holds that office at the time the Trustee authenticates
the Note on which such Note Guarantee is endorsed or at any time thereafter,
such Guarantor's Note Guarantee of such Note shall nevertheless be valid.

          The delivery of any Note by the Trustee, after the authentication
thereof hereunder, shall constitute due delivery of any Note Guarantee set forth
in this Indenture on behalf of each Guarantor.

SECTION 11.05.   RELEASE OF A GUARANTOR.

          A Guarantor shall be released from its obligations under its Note
Guarantee and its obligations under this Indenture and the Registration Rights
Agreement:

          (1)    in the event of a sale or other disposition of all or
     substantially all of the assets of such Guarantor, by way of merger,
     consolidation or otherwise, or a sale or other disposition of all of the
     Equity Interests of such Guarantor then held by the Issuer and the
     Restricted Subsidiaries;

          (2)    if such Guarantor is designated as an Unrestricted Subsidiary
     or otherwise ceases to be a Restricted Subsidiary, in each case in
     accordance with the provisions of this Indenture, upon effectiveness of
     such designation or when it first ceases to be a Restricted Subsidiary,
     respectively; or

          (3)    if such Guarantor shall not guarantee any Indebtedness or other
     Obligation under the Credit Agreement (other than if such Guarantor no
     longer guarantees any Indebtedness or other Obligation under the Credit
     Agreement as a result of payment under any guarantee of any such
     Indebtedness or other Obligation by such Guarantor); PROVIDED, HOWEVER,
     that a Guarantor shall not be permitted to be released from its Note
     Guarantee if it is an obligor with respect to any Indebtedness or other
     Obligation that would not, under Section 4.08, be permitted to be incurred
     by a Restricted Subsidiary that is not a Guarantor.

          The Trustee shall execute an appropriate instrument prepared by the
Issuer evidencing the release of a Guarantor from its obligations under its Note
Guarantee upon receipt of a request by the Is-

                                      -83-
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suer or such Guarantor accompanied by an Officers' Certificate and an Opinion of
Counsel certifying as to the compliance with this Section 11.05; PROVIDED,
HOWEVER, that the legal counsel delivering such Opinion of Counsel may rely as
to matters of fact on one or more Officers' Certificates of the Issuer.

          Except as set forth in Articles Four and Five and this Section 11.05,
nothing contained in this Indenture or in any of the Notes shall prevent any
consolidation or merger of a Guarantor with or into the Issuer (in which case
such Guarantor shall no longer be a Guarantor) or another Guarantor or shall
prevent any sale or conveyance of the property of a Guarantor as an entirety or
substantially as an entirety to the Issuer or another Guarantor.

SECTION 11.06.   WAIVER OF SUBROGATION.

          Until this Indenture is discharged and all of the Notes are discharged
and paid in full, each Guarantor hereby irrevocably waives and agrees not to
exercise any claim or other rights which it may now or hereafter acquire against
the Issuer that arise from the existence, payment, performance or enforcement of
the Issuer's obligations under the Notes or this Indenture and such Guarantor's
obligations under its Note Guarantee and this Indenture, in any such instance
including, without limitation, any right of subrogation, reimbursement,
exoneration, contribution, indemnification, and any right to participate in any
claim or remedy of the Holders against the Issuer, whether or not such claim,
remedy or right arises in equity, or under contract, statute or common law,
including, without limitation, the right to take or receive from the Issuer,
directly or indirectly, in cash or other assets or by set-off or in any other
manner, payment or security on account of such claim or other rights. If any
amount shall be paid to any Guarantor in violation of the preceding sentence and
any amounts owing to the Trustee or the Holders of Notes under the Notes, this
Indenture, or any other document or instrument delivered under or in connection
with such agreements or instruments, shall not have been paid in full, such
amount shall have been deemed to have been paid to such Guarantor for the
benefit of, and held in trust for the benefit of, the Trustee or the Holders and
shall forthwith be paid to the Trustee for the benefit of itself or such Holders
to be credited and applied to the obligations in favor of the Trustee or the
Holders, as the case may be, whether matured or unmatured, in accordance with
the terms of this Indenture. Each Guarantor acknowledges that it will receive
direct and indirect benefits from the financing arrangements contemplated by
this Indenture and that the waiver set forth in this Section 11.06 is knowingly
made in contemplation of such benefits.

SECTION 11.07.   IMMEDIATE PAYMENT.

          Each Guarantor agrees to make immediate payment to the Trustee on
behalf of the Holders of all Guarantee Obligations owing or payable to the
respective Holders upon receipt of a demand for payment therefor by the Trustee
to such Guarantor in writing.

SECTION 11.08.   NO SET-OFF.

          Each payment to be made by a Guarantor hereunder in respect of the
Guarantee Obligations shall be payable in the currency or currencies in which
such Guarantee Obligations are denominated, and shall be made without set-off,
counterclaim, reduction or diminution of any kind or nature.

SECTION 11.09.   GUARANTEE OBLIGATIONS ABSOLUTE.

          The obligations of each Guarantor hereunder are and shall be absolute
and unconditional and any monies or amounts expressed to be owing or payable by
each Guarantor hereunder which may

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not be recoverable from such Guarantor on the basis of a Guarantee shall be
recoverable from such Guarantor as a primary obligor and principal debtor in
respect thereof.

SECTION 11.10.   GUARANTEE OBLIGATIONS CONTINUING.

          The obligations of each Guarantor hereunder shall be continuing and
shall remain in full force and effect until all such obligations have been paid
and satisfied in full. Each Guarantor agrees with the Trustee that it will from
time to time deliver to the Trustee suitable acknowledgments of this continued
liability hereunder and under any other instrument or instruments in such form
as counsel to the Trustee may advise and as will prevent any action brought
against it in respect of any default hereunder being barred by any statute of
limitations now or hereafter in force and, in the event of the failure of a
Guarantor so to do, it hereby irrevocably appoints the Trustee the attorney and
agent of such Guarantor to make, execute and deliver such written acknowledgment
or acknowledgments or other instruments as may from time to time become
necessary or advisable, in the judgment of the Trustee on the advice of counsel,
to fully maintain and keep in force the liability of such Guarantor hereunder.

SECTION 11.11.   GUARANTEE OBLIGATIONS NOT REDUCED.

          The obligations of each Guarantor hereunder shall not be satisfied,
reduced or discharged solely by the payment of such principal, premium, if any,
interest, fees and other monies or amounts as may at any time prior to discharge
of this Indenture pursuant to Article Eight be or become owing or payable under
or by virtue of or otherwise in connection with the Notes or this Indenture.

SECTION 11.12.   GUARANTEE OBLIGATIONS REINSTATED.

          The obligations of each Guarantor hereunder shall continue to be
effective or shall be reinstated, as the case may be, if at any time any payment
which would otherwise have reduced the obligations of any Guarantor hereunder
(whether such payment shall have been made by or on behalf of the Issuer or by
or on behalf of a Guarantor) is rescinded or reclaimed from any of the Holders
upon the insolvency, bankruptcy, liquidation or reorganization of the Issuer or
any Guarantor or otherwise, all as though such payment had not been made. If
demand for, or acceleration of the time for, payment by the Issuer or any other
Guarantor is stayed upon the insolvency, bankruptcy, liquidation or
reorganization of the Issuer or such Guarantor, all such Indebtedness otherwise
subject to demand for payment or acceleration shall nonetheless be payable by
each Guarantor as provided herein.

SECTION 11.13.   GUARANTEE OBLIGATIONS NOT AFFECTED.

          The obligations of each Guarantor hereunder shall not be affected,
impaired or diminished in any way by any act, omission, matter or thing
whatsoever, occurring before, upon or after any demand for payment hereunder
(and whether or not known or consented to by any Guarantor or any of the
Holders) which, but for this provision, might constitute a whole or partial
defense to a claim against any Guarantor hereunder or might operate to release
or otherwise exonerate any Guarantor from any of its obligations hereunder or
otherwise affect such obligations, whether occasioned by default of any of the
Holders or otherwise, including, without limitation:

          (a)    any limitation of status or power, disability, incapacity or
     other circumstance relating to the Issuer or any other Person, including
     any insolvency, bankruptcy, liquidation, reorganization, readjustment,
     composition, dissolution, winding-up or other proceeding involving or
     affecting the Issuer or any other Person;

                                      -85-
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          (b)    any irregularity, defect, unenforceability or invalidity in
     respect of any indebtedness or other obligation of the Issuer or any other
     Person under this Indenture, the Notes or any other document or instrument;

          (c)    any failure of the Issuer or any other Guarantor, whether or
     not without fault on its part, to perform or comply with any of the
     provisions of this Indenture, the Notes or any Note Guarantee, or to give
     notice thereof to a Guarantor;

          (d)    the taking or enforcing or exercising or the refusal or neglect
     to take or enforce or exercise any right or remedy from or against the
     Issuer or any other Person or their respective assets or the release or
     discharge of any such right or remedy;

          (e)    the granting of time, renewals, extensions, compromises,
     concessions, waivers, releases, discharges and other indulgences to the
     Issuer or any other Person;

          (f)    any change in the time, manner or place of payment of, or in
     any other term of, any of the Notes, or any other amendment, variation,
     supplement, replacement or waiver of, or any consent to departure from, any
     of the Notes or this Indenture, including, without limitation, any increase
     or decrease in the principal amount of or premium, if any, or interest on
     any of the Notes;

          (g)    any change in the ownership, control, name, objects,
     businesses, assets, capital structure or constitution of the Issuer or a
     Guarantor;

          (h)    any merger or amalgamation of the Issuer or a Guarantor with
     any Person or Persons;

          (i)    the occurrence of any change in the laws, rules, regulations or
     ordinances of any jurisdiction by any present or future action of any
     governmental authority or court amending, varying, reducing or otherwise
     affecting, or purporting to amend, vary, reduce or otherwise affect, any of
     the Guarantee Obligations or the obligations of a Guarantor under its Note
     Guarantee; and

          (j)    any other circumstance, including release of a Guarantor
     pursuant to Section 11.05 (other than by complete, irrevocable payment)
     that might otherwise constitute a legal or equitable discharge or defense
     of the Issuer under this Indenture or the Notes or of a Guarantor in
     respect of its Note Guarantee hereunder.

SECTION 11.14.   WAIVER.

          Without in any way limiting the provisions of Section 11.01, each
Guarantor hereby waives notice of acceptance hereof, notice of any liability of
any Guarantor hereunder, notice or proof of reliance by the Holders upon the
obligations of any Guarantor hereunder, and diligence, presentment, demand for
payment on the Issuer, protest, notice of dishonor or non-payment of any of the
Guarantee Obligations, or other notice or formalities to the Issuer or any
Guarantor of any kind whatsoever.

SECTION 11.15.   NO OBLIGATION TO TAKE ACTION AGAINST THE ISSUER.

          Neither the Trustee nor any other Person shall have any obligation to
enforce or exhaust any rights or remedies against the Issuer or any other Person
or any property of the Issuer or any other

                                      -86-
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Person before the Trustee is entitled to demand payment and performance by any
or all Guarantors of their liabilities and obligations under their Note
Guarantees or under this Indenture.

SECTION 11.16.   DEALING WITH THE ISSUER AND OTHERS.

          The Holders, without releasing, discharging, limiting or otherwise
affecting in whole or in part the obligations and liabilities of any Guarantor
hereunder and without the consent of or notice to any Guarantor, may

          (a)    grant time, renewals, extensions, compromises, concessions,
     waivers, releases, discharges and other indulgences to the Issuer or any
     other Person;

          (b)    take or abstain from taking security or collateral from the
     Issuer or from perfecting security or collateral of the Issuer;

          (c)    release, discharge, compromise, realize, enforce or otherwise
     deal with or do any act or thing in respect of (with or without
     consideration) any and all collateral, mortgages or other security given by
     the Issuer or any third party with respect to the obligations or matters
     contemplated by this Indenture or the Notes;

          (d)    accept compromises or arrangements from the Issuer;

          (e)    apply all monies at any time received from the Issuer or from
     any security upon such part of the Guarantee Obligations as the Holders may
     see fit or change any such application in whole or in part from time to
     time as the Holders may see fit; and

          (f)    otherwise deal with, or waive or modify their right to deal
     with, the Issuer and all other Persons and any security as the Holders or
     the Trustee may see fit.

SECTION 11.17.   DEFAULT AND ENFORCEMENT.

          If any Guarantor fails to pay in accordance with Section 11.07 hereof,
the Trustee may proceed in its name as trustee hereunder in the enforcement of
the Note Guarantee of any such Guarantor and such Guarantor's obligations
thereunder and hereunder by any remedy provided by law, whether by legal
proceedings or otherwise, and to recover from such Guarantor the obligations.

SECTION 11.18.   AMENDMENT, ETC.

          Subject to Section 9.03 hereof, no amendment, modification or waiver
of any provision of this Indenture relating to any Guarantor or consent to any
departure by any Guarantor or any other Person from any such provision will in
any event be effective unless it is signed by such Guarantor and the Trustee.

SECTION 11.19.   ACKNOWLEDGMENT.

          Each Guarantor hereby acknowledges communication of the terms of this
Indenture and the Notes and consents to and approves of the same.

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SECTION 11.20.   COSTS AND EXPENSES.

          Each Guarantor shall pay on demand by the Trustee any and all costs,
fees and expenses (including, without limitation, reasonable legal fees on a
solicitor and client basis) incurred by the Trustee, its agents, advisors and
counsel or any of the Holders in enforcing any of their rights under any Note
Guarantee.

SECTION 11.21.   NO MERGER OR WAIVER; CUMULATIVE REMEDIES.

          No Note Guarantee shall operate by way of merger of any of the
obligations of a Guarantor under any other agreement, including, without
limitation, this Indenture. No failure to exercise and no delay in exercising,
on the part of the Trustee or the Holders, any right, remedy, power or privilege
hereunder or under this Indenture or the Notes, shall operate as a waiver
thereof; nor shall any single or partial exercise of any right, remedy, power or
privilege hereunder or under this Indenture or the Notes preclude any other or
further exercise thereof or the exercise of any other right, remedy, power or
privilege. The rights, remedies, powers and privileges in the Note Guarantee and
under this Indenture, the Notes and any other document or instrument between a
Guarantor and/or the Issuer and the Trustee are cumulative and not exclusive of
any rights, remedies, powers and privilege provided by law.

SECTION 11.22.   SURVIVAL OF GUARANTEE OBLIGATIONS.

          Without prejudice to the survival of any of the other obligations of
each Guarantor hereunder, the obligations of each Guarantor under Section 11.01
shall survive the payment in full of the Guarantee Obligations and shall be
enforceable against such Guarantor without regard to and without giving effect
to any defense, right of offset or counterclaim available to or which may be
asserted by the Issuer or any Guarantor.

SECTION 11.23.   GUARANTEE IN ADDITION TO OTHER GUARANTEE OBLIGATIONS.

          The obligations of each Guarantor under its Note Guarantee and this
Indenture are in addition to and not in substitution for any other obligations
to the Trustee or to any of the Holders in relation to this Indenture or the
Notes and any guarantees or security at any time held by or for the benefit of
any of them.

                                 ARTICLE TWELVE

                                  MISCELLANEOUS

SECTION 12.01.   TRUST INDENTURE ACT CONTROLS.

          If any provision of this Indenture limits, qualifies, or conflicts
with another provision which is required or deemed to be included in this
Indenture by the Trust Indenture Act, such required or deemed provision shall
control.

SECTION 12.02.   NOTICES.

          Any notices or other communications required or permitted hereunder
shall be in writing, and shall be sufficiently given if made by hand delivery,
by telex, by nationally recognized overnight courier service, by telecopier or
registered or certified mail, postage prepaid, return receipt requested,
addressed as follows:

                                      -88-
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     if to the Issuer or a Guarantor:

          c/o Inverness Medical Innovations, Inc.
          51 Sawyer Road
          Waltham, MA 02453
          Attention:  Chief Financial Officer
          Telephone:  (781) 647-3900
          Facsimile:  (781) 647-3939

          With a copy to:

          Goodwin Procter LLP
          Exchange Place
          53 State Street
          Attention:  Martin Carmichael III, PC
          Telephone:  (617) 570-1166
          Facsimile:  (617) 570-8150

     if to the Trustee:

          U.S. Bank Trust National Association
          100 Wall Street, Suite 1600
          New York, New York 10005
          Attention:  Corporate Trust Department
          Telephone:    (212) 361-2525
          Facsimile:    (212) 509-3384

          Each of the Issuer and the Trustee by written notice to each other
such Person may designate additional or different addresses for notices to such
Person. Any notice or communication to the Issuer and the Trustee, shall be
deemed to have been given or made as of the date so delivered if personally
delivered; when replied to; when receipt is acknowledged, if telecopied; five
(5) calendar days after mailing if sent by registered or certified mail, postage
prepaid (except that a notice of change of address shall not be deemed to have
been given until actually received by the addressee); and next Business Day if
by nationally recognized overnight courier service.

          Any notice or communication mailed to a Holder shall be mailed to him
by first class mail or other equivalent means at his address as it appears on
the registration books of the Registrar and shall be sufficiently given to him
if so mailed within the time prescribed.

          Failure to mail a notice or communication to a Holder or any defect in
it shall not affect its sufficiency with respect to other Holders. If a notice
or communication is mailed in the manner provided above, it is duly given,
whether or not the addressee receives it.

SECTION 12.03.   COMMUNICATIONS BY HOLDERS WITH OTHER HOLDERS.

          Holders may communicate pursuant to Trust Indenture Act Section 312(b)
with other Holders with respect to their rights under this Indenture, the Notes
or the Note Guarantees. The Issuer, the Trustee, the Registrar and any other
Person shall have the protection of Trust Indenture Act Section 312(c).

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SECTION 12.04.   CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.

          Upon any request or application by the Issuer to the Trustee to take
any action under this Indenture, the Issuer shall furnish to the Trustee at the
request of the Trustee:

          (1)    an Officers' Certificate, in form and substance satisfactory to
     the Trustee, stating that, in the opinion of the signers, all conditions
     precedent, if any, to be performed or effected by the Issuer, if any,
     provided for in this Indenture relating to the proposed action have been
     complied with; and

          (2)    an Opinion of Counsel stating that, in the opinion of such
     counsel, all such conditions precedent, if any, have been complied with.

SECTION 12.05.   STATEMENTS REQUIRED IN CERTIFICATE OR OPINION.

          Each certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture, other than the Officers'
Certificate required by Section 4.06, shall include:

          (1)    a statement that the Person making such certificate or opinion
     has read such covenant or condition;

          (2)    a brief statement as to the nature and scope of the examination
     or investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3)    a statement that, in the opinion of such Person, he has made
     such examination or investigation as is necessary to enable him to express
     an informed opinion as to whether or not such covenant or condition has
     been complied with or satisfied; and

          (4)    a statement as to whether or not, in the opinion of each such
     Person, such condition or covenant has been complied with; PROVIDED,
     HOWEVER, that with respect to matters of fact, an Opinion of Counsel may
     rely on an Officers' Certificate or certificates of public officials.

SECTION 12.06.   RULES BY PAYING AGENT OR REGISTRAR.

          The Paying Agent or Registrar may make reasonable rules and set
reasonable requirements for their functions.

SECTION 12.07.   LEGAL HOLIDAYS.

          If a payment date is not a Business Day, payment may be made on the
next succeeding day that is a Business Day.

SECTION 12.08.   GOVERNING LAW.

          THIS INDENTURE, THE NOTES AND THE NOTE GUARANTEES WILL BE GOVERNED BY
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

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SECTION 12.09.   NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.

          This Indenture may not be used to interpret another indenture, loan or
debt agreement of any of the Issuer or any of its Subsidiaries. Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.

SECTION 12.10.   NO RECOURSE AGAINST OTHERS.

          No director, officer, employee, incorporator, stockholder, member or
manager of the Issuer or any Guarantor shall have any liability for any
obligations of the Issuer under the Notes or this Indenture or of any Guarantor
under its Note Guarantee or the Indenture or for any claim based on, in respect
of, or by reason of, such obligations or their creation. Each Holder of Notes by
accepting a Note waives and releases all such liability. Such waiver and release
are part of the consideration for issuance of the Notes.

SECTION 12.11.   SUCCESSORS.

          All agreements of the Issuer and the Guarantors in this Indenture, the
Notes and the Note Guarantees shall bind their respective successors. All
agreements of the Trustee in this Indenture shall bind its successor.

SECTION 12.12.   DUPLICATE ORIGINALS.

          All parties may sign any number of copies of this Indenture. Each
signed copy or counterpart shall be an original, but all of them together shall
represent the same agreement.

SECTION 12.13.   SEVERABILITY.

          To the extent permitted by applicable law, in case any one or more of
the provisions in this Indenture, in the Notes or in the Note Guarantees shall
be held invalid, illegal or unenforceable, in any respect for any reason, the
validity, legality and enforceability of any such provision in every other
respect and of the remaining provisions shall not in any way be affected or
impaired thereby, it being intended that all of the provisions hereof shall be
enforceable to the full extent permitted by law.

                                      -91-
<Page>

                                   SIGNATURES

          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed all as of the date first written above.


                              INVERNESS MEDICAL INNOVATIONS, INC.,
                               as Issuer


                              By: /s/ Christopher Lindop
                                 -----------------------------------------------
                                  Name: Christopher Lindop
                                  Title:  Chief Financial Officer


                              APPLIED BIOTECH, INC.
                              FOREFRONT DIAGNOSTICS, INC.
                              INNOVATIONS RESEARCH, LLC
                              INVERNESS MEDICAL INTERNATIONAL
                               HOLDING CORP.
                              INVERNESS MEDICAL INTERNATIONAL
                               HOLDING CORP. II
                              INVERNESS MEDICAL, INC.
                              MORPHEUS ACQUISITION CORP.
                              OSTEX INTERNATIONAL, INC.
                              UNIPATH DIAGNOSTICS, INC.
                              UNIPATH ONLINE, INC.
                              WAMPOLE LABORATORIES, LLC
                               as Guarantors

                              By: /s/ Anthony J. Bernardo
                                  ----------------------------------------------
                              Name:   Anthony J. Bernardo
                               Title: President, Vice President or Manager,
                                      President, President, President,
                                      President, President, Vice President,
                                      President, Vice President, respectively


                              SELFCARE TECHNOLOGY, INC.
                               as a Guarantor


                              By: /s/ Duane L. James                           ,
                                  ----------------------------------------------
                                  Name:   Duane L. James
                                  Title: Treasurer

                                       S-1
<Page>

                              U.S. BANK TRUST NATIONAL ASSOCIATION,
                               as Trustee


                              By: /s/ Cheryl L. Clarke
                                  ----------------------------------------------
                                  Name: Cheryl L. Clarke
                                  Title:  Assistant Vice President

                                       S-2
<Page>

                                                                       EXHIBIT A

[INSERT THE GLOBAL NOTE LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS OF THE
INDENTURE]

[INSERT THE PRIVATE PLACEMENT LEGEND, IF APPLICABLE PURSUANT TO THE PROVISIONS
OF THE INDENTURE]

                       INVERNESS MEDICAL INNOVATIONS, INC.
                      8 3/4% Senior Subordinated Notes 2012


                                                                       CUSIP No.
No.                                                                     $

          INVERNESS MEDICAL INNOVATIONS, INC., a Delaware corporation (the
"ISSUER"), for value received promises to pay to _______________ or its
registered assigns, the principal sum of [                    ] [or such other
amount as is provided in a schedule attached hereto](a) on February 15, 2012.

          Interest Payment Dates: February 15 and August 15, commencing August
15, 2004.

          Record Dates: February 1 and August 1.

          Reference is made to the further provisions of this Note contained
herein, which will for all purposes have the same effect as if set forth at this
place.

----------
(a)       This language should be included only if the Note is issued in global
form.

                                       A-1

<Page>

          IN WITNESS WHEREOF, the Issuer has caused this Note to be signed
manually or by facsimile by its duly authorized officer.

Dated:


                              INVERNESS MEDICAL INNOVATIONS, INC.,
                                as Issuer


                              By:
                                 -----------------------------------------------
                                 Name:
                                 Title:


                              By:
                                 -----------------------------------------------
                                 Name:
                                 Title:

                                       A-2
<Page>

                [FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

          This is one of the 8 3/4% Senior Subordinated Notes due 2012 described
in the within-mentioned Indenture.

Dated:

                              U.S. BANK TRUST NATIONAL ASSOCIATION,
                                as Trustee


                              By:
                                 -----------------------------------------------
                                             Authorized Signatory

                                       A-3
<Page>

                                (Reverse of Note)

                    8 3/4% Senior Subordinated Notes due 2012

          Capitalized terms used herein shall have the meanings assigned to them
in the Indenture referred to below unless otherwise indicated.

          SECTION 1.   INTEREST. Inverness Medical Innovations, Inc., a Delaware
corporation (the "ISSUER") promises to pay interest on the principal amount of
this Note at 8 3/4% PER ANNUM from February 10, 2004 until maturity. The Issuer
will pay interest semi-annually on February 15 and August 15 of each year, or if
any such day is not a Business Day, on the next succeeding Business Day (each an
"INTEREST PAYMENT DATE"), commencing August 15, 2004. Interest on the Notes will
accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from the date of original issuance. The Issuer shall pay
interest (including post-petition interest in any proceeding under any
Bankruptcy Law) on overdue principal and premium, if any, from time to time on
demand to the extent lawful at the interest rate applicable to the Notes; it
shall pay interest (including post-petition interest in any proceeding under any
Bankruptcy Law) on overdue installments of interest (without regard to any
applicable grace periods) from time to time on demand at the same rate to the
extent lawful. Interest will be computed on the basis of a 360-day year of
twelve 30-day months.

          SECTION 2.   METHOD OF PAYMENT. The Issuer will pay interest on the
Notes to the Persons who are registered Holders of Notes at the close of
business on the February 1 or August 1 next preceding the Interest Payment Date,
even if such Notes are canceled after such record date and on or before such
Interest Payment Date, except as provided in Section 2.12 of the Indenture with
respect to defaulted interest. The Notes will be issued in denominations of
$1,000 and integral multiples thereof. The Issuer shall pay principal, premium,
if any, and interest on the Notes in such coin or currency of the United States
of America as at the time of payment is legal tender for payment of public and
private debts ("U.S. LEGAL TENDER"). Principal, premium, if any, and interest on
the Notes will be payable at the office or agency of the Issuer maintained for
such purpose except that, at the option of the Issuer, the payment of interest
may be made by check mailed to the Holders of the Notes at their respective
addresses set forth in the register of Holders of Notes; PROVIDED, HOWEVER, that
for Holders that have given wire transfer instructions to the Issuer at least
ten Business Days prior to the applicable payment date, the Issuer will make all
payments of principal, premium and interest by wire transfer of immediately
available funds to the accounts specified by the Holders thereof. Until
otherwise designated by the Issuer, the Issuer's office or agency in New York
will be the office of the Trustee maintained for such purpose.

          SECTION 3.   PAYING AGENT AND REGISTRAR. Initially, U.S. Bank Trust
National Association, the Trustee under the Indenture, will act as Paying Agent
and Registrar. The Issuer may change any Paying Agent or Registrar without
notice to any Holder. Except as provided in the Indenture, the Issuer or any of
their Subsidiaries may act in any such capacity.

                                       A-4
<Page>

          SECTION 4.   INDENTURE AND SUBORDINATION. The Issuer issued the Notes
under an Indenture dated as of February 10, 2004 ("INDENTURE") by and among the
Issuer, the Guarantors and the Trustee. The terms of the Notes include those
stated in the Indenture and those made part of the Indenture by reference to the
Trust Indenture Act of 1939, as amended (15 U.S. Code Sections 77aaa-77bbbb)
(the "TRUST INDENTURE ACT"). The Notes are subject to all such terms, and
Holders are referred to the Indenture and the Trust Indenture Act for a
statement of such terms. The payment of the Notes will, to the extent set forth
in the Indenture, be subordinated in right of payment to the prior payment in
full in cash or cash equivalents of all Senior Debt.

          SECTION 5.   OPTIONAL REDEMPTION. Except as set forth in Section 6
hereof, the Notes will not be redeemable at the Issuer's option prior to
February 15, 2008. On or after February 15, 2008, the Notes will be subject to
redemption at any time at the option of the Issuer, in whole or in part, upon
not less than 30 nor more than 60 days' notice, at the redemption prices
(expressed as percentages of principal amount) set forth below plus accrued and
unpaid interest thereon, if any, to the applicable Redemption Date, if redeemed
during the twelve-month period beginning on February 15 of the years indicated
below:

<Table>
<Caption>
          YEAR                                                  PERCENTAGE
          ----------------------------------------------------  ---------------
          <S>                                                     <C>
          2008.............................................       104.375%
          2009.............................................       102.188%
          2010 and thereafter..............................       100.000%
</Table>

          SECTION 6.   OPTIONAL REDEMPTION WITH PROCEEDS FROM EQUITY OFFERINGS
OR UPON A CHANGE OF CONTROL. (a) At any time prior to February 15, 2007, the
Issuer may redeem up to 35% of the aggregate principal amount of Notes with the
net cash proceeds of one or more Qualified Equity Offerings at a redemption
price equal to 108.75% of the principal amount of the Notes to be redeemed, plus
accrued and unpaid interest thereon, if any, to the Redemption Date; PROVIDED,
HOWEVER, that (i) at least 65% of the aggregate principal amount of Notes issued
under the Indenture remains outstanding immediately after the occurrence of such
redemption and (ii) such redemption shall occur within 90 days of the date of
the closing of any such Qualified Equity Offering.

          SECTION 7.   NOTICE OF REDEMPTION. Notice of redemption will be mailed
by first class mail at least 30 days but not more than 60 days before the
redemption date to each Holder of Notes to be redeemed at its registered
address. Notes in denominations larger than $1,000 may be redeemed in part. If
any Note is to be redeemed in part only, the notice of redemption that relates
to such Note shall state the portion of the principal amount thereof to be
redeemed. A new Note in principal amount equal to the unredeemed portion thereof
will be issued in the name of the Holder thereof upon cancellation of the
original Note. On and after the redemption date interest ceases to accrue on
Notes or portions thereof called for redemption.

          SECTION 8.   MANDATORY REDEMPTION. For the avoidance of doubt, an
offer to purchase pursuant to Section 8 hereof shall not be deemed a redemption.
The Issuer shall not be required to make mandatory redemption payments with
respect to the Notes.

                                       A-5
<Page>

          SECTION 9.   REPURCHASE AT OPTION OF HOLDER. Upon the occurrence of a
Change of Control, and subject to certain conditions set forth in the Indenture,
the Issuer will be required to offer to purchase all of the outstanding Notes at
a purchase price equal to 101% of the principal amount thereof, plus accrued and
unpaid interest, if any, thereon to the date of repurchase.

          The Issuer is, subject to certain conditions and exceptions set forth
in the Indenture, obligated to make an offer to purchase Notes at 100% of their
principal amount, plus accrued and unpaid interest, if any, thereon to the date
of repurchase, with certain net cash proceeds of certain sales or other
dispositions of assets in accordance with the Indenture.

          SECTION 10.  DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in
registered form without coupons in denominations of $1,000 and integral
multiples of $1,000. The transfer of Notes may be registered and Notes may be
exchanged as provided in the Indenture. The Registrar and the Trustee may
require a Holder, among other things, to furnish appropriate endorsements and
transfer documents and the Issuer may require a Holder to pay any taxes and fees
required by law or permitted by the Indenture. The Issuer and the Registrar are
not required to transfer or exchange any Note selected for redemption. Also, the
Issuer and the Registrar are not required to transfer or exchange any Notes for
a period of 15 days before a selection of Notes to be redeemed.

          SECTION 11.  PERSONS DEEMED OWNERS. The registered Holder of a Note
may be treated as its owner for all purposes.

          SECTION 12.  AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain
exceptions, the Indenture and the Notes may be amended or supplemented with the
written consent of the Holders of at least a majority in aggregate principal
amount of the Notes then outstanding, and compliance with any provision may be
waived with the consent of the Holders of a majority in aggregate principal
amount of the Notes then outstanding. Without notice to or consent of any
Holder, the parties thereto may amend or supplement the Indenture and the Notes
to, among other things, cure any ambiguity, defect or inconsistency in the
Indenture, provide for uncertificated Notes in addition to or in place of
certificated Notes, comply with any requirements of the SEC in connection with
the qualification of the Indenture under the Trust Indenture Act, or make any
change that does not materially adversely affect the rights of any Holder.

          SECTION 13.  DEFAULTS AND REMEDIES. If a Default occurs and is
continuing, the Trustee or the Holders of at least 25% in principal amount of
the then outstanding Notes generally may by written notice to the Issuer and the
Trustee declare all the Notes to be due and payable immediately. Notwithstanding
the foregoing, in the case of a Default arising from certain events of
bankruptcy or insolvency as set forth in the Indenture, with respect to the
Issuer or any Significant Subsidiary, all outstanding Notes will become due and
payable without further action or notice. Holders of the Notes may not enforce
the Indenture or the Notes except as provided in the Indenture. Subject to
certain limitations, Holders of a majority in principal amount of the then
outstanding Notes may direct the Trustee in its exercise of any trust or power.
The Trustee may withhold from Holders of the Notes notice of any continuing
Default (except a Default relating to the payment of principal or interest
in-

                                       A-6
<Page>

cluding an accelerated payment or the failure to make a payment on the Change
of Control Payment Date or the Net Proceeds Payment Date pursuant to a Net
Proceeds Offer) or a Default in complying with the provisions of Article Five of
the Indenture if it determines that withholding notice is in their interest. The
Holders of a majority in aggregate principal amount of the Notes then
outstanding by notice to the Trustee may on behalf of the Holders of all of the
Notes waive any existing Default and its consequences under the Indenture except
a continuing Default in the payment of interest on, or the principal of, or the
premium, if any, on, the Notes.

          SECTION 14.  RESTRICTIVE COVENANTS. The Indenture contains certain
covenants that, among other things, limit the ability of the Issuer and its
Restricted Subsidiaries to make restricted payments, to incur indebtedness, to
create liens, to sell assets, to permit restrictions on dividends and other
payments by Restricted Subsidiaries of the Issuer, to consolidate, merge or sell
all or substantially all of its assets or to engage in transactions with
affiliates. The limitations are subject to a number of important qualifications
and exceptions. The Issuer must annually report to the Trustee on compliance
with such limitations and other provisions in the Indenture.

          SECTION 15.  NO RECOURSE AGAINST OTHERS. No director, officer,
employee, incorporator, stockholder, member or manager of the Issuer or any
Guarantor shall have any liability for any obligations of the Issuer under the
Notes or the Indenture, or of any Guarantor under its Note Guarantee or the
Indenture or for any claim based on, in respect of, or by reason of, such
obligations or their creation. Each Holder of Notes by accepting a Note waives
and releases all such liability. The waiver and release are part of the
consideration for issuance of the Notes.

          SECTION 16.  NOTE GUARANTEES. This Note will be entitled to the
benefits of certain Note Guarantees made for the benefit of the Holders.
Reference is hereby made to the Indenture for a statement of the respective
rights, limitations of rights, duties and obligations thereunder of the
Guarantors, the Trustee and the Holders.

          SECTION 17.  TRUSTEE DEALINGS WITH THE ISSUER. Subject to certain
terms, the Trustee under the Indenture, in its individual or any other capacity,
may become the owner or pledgee of Notes and may otherwise deal with the Issuer,
their Subsidiaries or their respective Affiliates as if it were not the Trustee.

          SECTION 18.  AUTHENTICATION. This Note shall not be valid until
authenticated by the manual signature of the Trustee or an authenticating agent.

          SECTION 19.  ABBREVIATIONS. Customary abbreviations may be used in the
name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT
(= tenants by the entirety), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts
to Minors Act).

          SECTION 20.  ADDITIONAL RIGHTS OF HOLDERS OF RESTRICTED GLOBAL NOTES
AND RESTRICTED DEFINITIVE NOTES. Pursuant to, but subject to the exceptions in,
the Registration Rights Agree-

                                       A-7
<Page>

ment, the Issuer and the Guarantors will be obligated to consummate an exchange
offer pursuant to which the Holder of this Note shall have the right to exchange
this Note for an 8 3/4% Senior Subordinated Note due 2012 of the Issuer which
shall have been registered under the Securities Act, in like principal amount
and having terms identical in all material respects to this Note (except that
such note shall not be entitled to Additional Interest and shall not contain
terms with respect to transfer restrictions). The Holders shall be entitled to
receive certain Additional Interest in the event such exchange offer is not
consummated or the Notes are not offered for resale and upon certain other
conditions, all pursuant to and in accordance with the terms of the Registration
Rights Agreement.(a)

          SECTION 21.  CUSIP AND ISIN NUMBERS. Pursuant to a recommendation
promulgated by the Committee on Uniform Security Identification Procedures, the
Issuer has caused CUSIP and ISIN numbers to be printed on the Notes and the
Trustee may use CUSIP or ISIN numbers in notices of redemption as a convenience
to Holders. No representation is made as to the accuracy of such numbers either
as printed on the Notes or as contained in any notice of redemption and reliance
may be placed only on the other identification numbers placed thereon.

          SECTION 22.  GOVERNING LAW. THIS NOTE SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

          The Issuer will furnish to any Holder upon written request and without
charge a copy of the Indenture.

----------
(a)       This Section not to appear on Exchange Notes or Private Exchange Notes
or Additional Notes unless required by the terms of such Additional Notes.

                                       A-8
<Page>

                                 ASSIGNMENT FORM

I or we assign and transfer this Note to:

________________________________________________________

________________________________________________________

________________________________________________________
(Print or type name, address and zip code of assignee or transferee)

________________________________________________________
(Insert Social Security or other identifying number of assignee or transferee)

and irrevocably appoint _______________________________________ agent to
transfer this Note on the books of the Issuer. The agent may substitute another
to act for him.

Dated:                             Signed:
        -----------------                 --------------------------------------
                                           (Sign exactly as name appears on
                                            the other side of this Note)


Signature Guarantee:
                              --------------------------------------------------
                              Participant in a recognized Signature Guarantee
                              Medallion Program (or other signature guarantor
                              program reasonably acceptable to the Trustee)

          In connection with any transfer of this Note occurring prior to the
date which is the date following the second anniversary of the original issuance
of this Note, the undersigned confirms that it has not utilized any general
solicitation or general advertising in connection with the transfer and is
making the transfer pursuant to one of the following:

                                   [Check One]

(1) / /   to the Issuer or a subsidiary thereof; or

(2) / /   to a person who the transferor reasonably believes is a "qualified
          institutional buyer" pursuant to and in compliance with Rule 144A
          under the Securities Act of 1933, as amended (the "SECURITIES ACT");
          or

(3) / /   to an institutional "accredited investor" (as defined in Rule
          501(a)(1), (2), (3) or (7) under the Securities Act) that has
          furnished to the Trustee a signed letter containing certain
          representations and agreements (the form of which letter can be
          obtained from the Trustee); or

                                       A-9
<Page>

(4) / /   outside the United States to a non-"U.S. person" as defined in
          Rule 902 of Regulation S under the Securities Act in compliance with
          Rule 904 of Regulation S under the Securities Act; or

(5) / /   pursuant to the exemption from registration provided by Rule 144
          under the Securities Act; or

(6) / /   pursuant to an effective registration statement under the Securities
Act.

and unless the box below is checked, the undersigned confirms that such Note is
not being transferred to an "affiliate" of the Issuer as defined in Rule 144
under the Securities Act (an "AFFILIATE"):

     / /  The transferee is an Affiliate of the Issuer.

          Unless one of the foregoing items (1) through (6) is checked, the
Trustee will refuse to register any of the Notes evidenced by this certificate
in the name of any person other than the registered Holder thereof; PROVIDED,
HOWEVER, that if item (3), (4) or (5) is checked, the Issuer or the Trustee may
require, prior to registering any such transfer of the Notes, in their sole
discretion, such written legal opinions, certifications (including an investment
letter in the case of box (3) or (4)) and other information as the Trustee or
the Issuer has reasonably requested to confirm that such transfer is being made
pursuant to an exemption from, or in a transaction not subject to, the
registration requirements of the Securities Act.

          If none of the foregoing items (1) through (6) are checked, the
Trustee or Registrar shall not be obligated to register this Note in the name of
any person other than the Holder hereof unless and until the conditions to any
such transfer of registration set forth herein and in Section 2.16 of the
Indenture shall have been satisfied.

Dated:                        Signed:
                                       -----------------------------------------
                                       (Sign exactly as name appears on the
                                        other side of this Note)

Signature Guarantee:
                                       -----------------------------------------

                                Participant in a recognized Signature Guarantee
                                Medallion Program (or other signature guarantor
                                program reasonably acceptable to the Trustee)


TO BE COMPLETED BY PURCHASER IF (2) ABOVE IS CHECKED

                  The undersigned represents and warrants that it is purchasing
this Note for its own account or an account with respect to which it exercises
sole investment discretion and that it and any

                                      A-10
<Page>

such account is a "qualified institutional buyer" within the meaning of Rule
144A under the Securities Act and is aware that the sale to it is being made in
reliance on Rule 144A and acknowledges that it has received such information
regarding the Issuer as the undersigned has requested pursuant to Rule 144A or
has determined not to request such information and that it is aware that the
transferor is relying upon the undersigned's foregoing representations in order
to claim the exemption from registration provided by Rule 144A.

Dated:
                                  NOTICE: To be executed by an executive officer

                                      A-11
<Page>

                       OPTION OF HOLDER TO ELECT PURCHASE

          If you want to elect to have this Note purchased by the Issuer
pursuant to Section 4.07 or Section 4.11 of the Indenture, check the appropriate
box:

          Section 4.07 [      ]              Section 4.11 [       ]

          If you want to elect to have only part of this Note purchased by the
Issuer pursuant to Section 4.07 or Section 4.11 of the Indenture, state the
amount (in denominations of $1,000 and integral multiples thereof): $___________


Dated:                                Signed:
        -----------------                       --------------------------------
                                                (Sign exactly as name appears
                                                 on the other side of this Note)


Signature Guarantee:
                              --------------------------------------------------
                              Participant in a recognized Signature Guarantee
                              Medallion Program (or other signature guarantor
                              program reasonably acceptable to the Trustee)

                                      A-12
<Page>

             SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE(a)

          The following exchanges of a part of this Global Note for an interest
in another Global Note or for a Physical Note, or exchanges of a part of another
Global Note or Physical Note for an interest in this Global Note, have been
made:

<Table>
<Caption>
                                                                         Principal Amount of        Signature of
                       Amount of decrease in   Amount of increase in      this Global Note      authorized officer of
                        Principal Amount of    Principal Amount of    following such decrease     Trustee or Note
   Date of Exchange      this Global Note        this Global Note         (or increase)              Custodian
-------------------    ----------------------  ---------------------  -----------------------   ----------------------
<S>                    <C>                     <C>                    <C>                       <C>


</Table>

----------
(a)       This schedule should be included only if the Note is issued in global
form

                                      A-13
<Page>

                                                                       EXHIBIT B

                                 FORM OF LEGENDS


          Each Global Note and Physical Note that constitutes a Restricted
Security shall bear the following legend (the "PRIVATE PLACEMENT LEGEND") on the
face thereof until after the second anniversary of the Issue Date, unless
otherwise agreed by the Issuer and the Holder thereof or if such legend is no
longer required by Section 2.16(f) of the Indenture:

          THE SECURITY (OR ITS PREDECESSOR) EVIDENCED BY THIS CERTIFICATE WAS
     ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER SECTION 5
     OF THE U.S. SECURITIES ACT OF 1933, AND THE SECURITY EVIDENCED BY THIS
     CERTIFICATE MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED IN
     THE ABSENCE OF REGISTRATION OR AN APPLICABLE EXEMPTION FROM THE SECURITIES
     ACT. EACH PURCHASER OF THE SECURITY EVIDENCED BY THIS CERTIFICATE (1) BY
     ITS ACQUISITION OF THE SECURITY REPRESENTS THAT (A) IT IS A "QUALIFIED
     INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT),
     (B) IT IS NOT A U.S. PERSON AND IS ACQUIRING THE SECURITY EVIDENCED BY THIS
     CERTIFICATE IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH REGULATION S
     UNDER THE SECURITIES ACT, OR (C) IT IS AN "ACCREDITED INVESTOR" WITHIN THE
     MEANING OF RULE 501(A)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT (AN
     "INSTITUTIONAL ACCREDITED INVESTOR") THAT IS ACQUIRING THE SECURITY FOR ITS
     OWN ACCOUNT OR FOR THE ACCOUNT OF AN INSTITUTIONAL ACCREDITED INVESTOR AND
     (2) IS HEREBY NOTIFIED THAT THE SELLER MAY BE RELYING ON THE EXEMPTION FROM
     THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A OR
     ANOTHER EXEMPTION UNDER THE SECURITIES ACT. THE HOLDER OF THE SECURITY
     EVIDENCED BY THIS CERTIFICATE AGREES FOR THE BENEFIT OF THE ISSUER THAT (X)
     THIS SECURITY MAY BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY (1)(A)
     TO A PERSON WHO THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL
     BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A TRANSACTION
     MEETING THE REQUIREMENTS OF RULE 144A, (B) IN A TRANSACTION MEETING THE
     REQUIREMENTS OF RULE 144 UNDER THE SECURITIES ACT, IF AVAILABLE, (C)
     OUTSIDE THE UNITED STATES TO A PERSON THAT IS NOT A U.S. PERSON (AS DEFINED
     IN RULE 902 UNDER THE SECURITIES ACT) IN A TRANSACTION MEETING THE
     REQUIREMENTS OF REGULATION S UNDER THE SECURITIES ACT, (D) TO AN
     INSTITUTIONAL ACCREDITED INVESTOR THAT IS PURCHASING AT LEAST $100,000 OF
     NOTES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF AN INSTITUTIONAL ACCREDITED
     INVESTOR (AND BASED UPON AN OPINION OF COUNSEL IF THE ISSUER SO REQUESTS),
     (2) TO THE ISSUER OR ANY OF ITS SUBSIDIARIES OR (3) UNDER AN EFFECTIVE
     REGISTRATION STATEMENT AND, IN EACH CASE, IN COMPLIANCE WITH ANY

                                      B-1
<Page>

     APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER
     APPLICABLE JURISDICTION AND (Y) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER
     IS REQUIRED TO, NOTIFY ANY PURCHASER FROM IT OF THE SECURITY EVIDENCED BY
     THIS CERTIFICATE OF THE RESALE RESTRICTIONS DESCRIBED IN (X) ABOVE. IN
     CONNECTION WITH ANY TRANSFER OF THIS SECURITY WITHIN TWO YEARS AFTER THE
     ORIGINAL ISSUANCE OF THIS SECURITY, IF THE PROPOSED TRANSFEREE IS AN
     INSTITUTIONAL ACCREDITED INVESTOR, THE HOLDER MUST, PRIOR TO SUCH TRANSFER,
     FURNISH TO THE TRUSTEE AND THE ISSUER SUCH CERTIFICATIONS, LEGAL OPINIONS
     OR OTHER INFORMATION AS EITHER OF THEM MAY REASONABLY REQUIRE TO CONFIRM
     THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A
     TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES
     ACT.

          Each Global Note authenticated and delivered hereunder shall also bear
the following legend:

          THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE
     HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY OR A
     NOMINEE OF A DEPOSITORY OR A SUCCESSOR DEPOSITORY. THIS NOTE IS NOT
     EXCHANGEABLE FOR NOTES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE
     DEPOSITORY OR ITS NOMINEE EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN
     THE INDENTURE, AND NO TRANSFER OF THIS NOTE (OTHER THAN A TRANSFER OF THIS
     NOTE AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A
     NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE
     DEPOSITORY) MAY BE REGISTERED EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED
     IN THE INDENTURE.

          UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
     OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE
     ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND
     ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
     OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY
     PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
     AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF
     FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE
     REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

          TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS IN WHOLE,
     BUT NOT IN PART, TO NOMINEES OF CEDE & CO. OR TO A SUCCESSOR THEREOF OR
     SUCH SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL NOTE
     SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET
     FORTH IN SECTION 2.16 OF THE INDENTURE.

                                      B-2
<Page>

                                                                       EXHIBIT C

                            FORM OF CERTIFICATE TO BE
                          DELIVERED IN CONNECTION WITH
             TRANSFERS TO NON-QIB INSTITUTIONAL ACCREDITED INVESTORS


                                                                   _________,___

U.S. Bank Trust National Association
100 Wall Street, Suite 1600
New York, NY 10005
T: (212) 361-2525
F: (212) 509-3384
Attention:  Corporate Trust Department

Ladies and Gentlemen:

          In connection with our proposed purchase of 8 3/4% Senior Subordinated
Notes due 2012 (the "NOTES") of INVERNESS MEDICAL INNOVATIONS, INC., a Delaware
corporation (the "ISSUER"), we confirm that:

          1.     We understand that any subsequent transfer of the Notes is
     subject to certain restrictions and conditions set forth in the Indenture
     relating to the Notes (the "INDENTURE") and the undersigned agrees to be
     bound by, and not to resell, pledge or otherwise transfer the Notes except
     in compliance with, such restrictions and conditions and the Securities Act
     of 1933, as amended (the "SECURITIES ACT"), and all applicable state
     securities laws.

          2.     We understand that the offer and sale of the Notes have not
     been registered under the Securities Act, and that the Notes may not be
     offered, sold, pledged or otherwise transferred except as permitted in the
     following sentence. We agree, on our own behalf and on behalf of any
     accounts for which we are acting as hereinafter stated, that if we should
     sell, offer, pledge or otherwise transfer any Notes, we will do so only (i)
     to the Issuer or any of its subsidiaries, (ii) inside the United States in
     a transaction meeting the requirements of Rule 144A under the Securities
     Act to a person who we reasonably believe to be a "qualified institutional
     buyer" (as defined in Rule 144A under the Securities Act), (iii) inside the
     United States to an institutional "accredited investor" (as defined below)
     that is purchasing at least $100,000 of Notes for its own account or for
     the account of an institutional accredited investor and who, prior to such
     transfer, furnishes (or has furnished on its behalf by a U.S.
     broker-dealer) to the Trustee (as defined in the Indenture) a signed letter
     containing certain representations and agreements relating to the
     restrictions on transfer of the Notes (the form of which letter can be
     obtained from the Trustee), (iv) outside the United States to a person that
     is not a U.S. person (as defined in Rule 902 under the Securities Act) in
     accordance with Regulation S promulgated under the Securities Act, (v)
     pursuant to the exemption from registration provided by Rule 144 under the
     Securities Act (if available) or (vi) pursuant to an effective registration
     statement under the Securities Act, and we further agree to provide to any
     person purchasing any of the Notes from us a notice advising such purchaser
     that resales of the Notes are restricted as stated herein.

          3.     We are not acquiring the Notes for or on behalf of, and will
     not transfer the Notes to, any employee benefit plan subject to Title I of
     the Employee Retirement Income Security Act

                                       C-1
<Page>

     of 1974, as amended ("ERISA"), any plan, individual retirement accounts or
     other arrangements subject to Section 4975 of the Internal Revenue Code of
     1986, as amended (the "CODE"), or provisions under any federal, state,
     local, or non-U.S. or other laws or regulations that are similar to such
     provisions of ERISA of the Code or any entity whose underlying assets are
     considered to include "plan assets" of such plans, accounts or
     arrangements, except as permitted in the sections entitled "Notice to
     investors" of the Offering Memorandum.

          4.     We understand that, on any proposed resale of any Notes, we
     will be required to furnish to the Trustee and the Issuer such
     certification, legal opinions and other information as the Trustee and the
     Issuer may reasonably require to confirm that the proposed sale complies
     with the foregoing restrictions. We further understand that the Notes
     purchased by us will bear a legend to the foregoing effect.

          5.     We are an institutional "accredited investor" (as defined in
     Rule 501(a)(1), (2), (3) or (7) of Regulation D under the Securities Act)
     and have such knowledge and experience in financial and business matters as
     to be capable of evaluating the merits and risks of our investment in the
     Notes, and we and any accounts for which we are acting are each able to
     bear the economic risk of our or their investment, as the case may be.

          6.     We are acquiring the Notes purchased by us for our account or
     for one or more accounts (each of which is an institutional "accredited
     investor") as to each of which we exercise sole investment discretion.

          You, as Trustee, the Issuer, counsel for the Issuer and others are
entitled to rely upon this letter and are irrevocably authorized to produce this
letter or a copy hereof to any interested party in any administrative or legal
proceeding or official inquiry with respect to the matters covered hereby.


                                          Very truly yours,

                                          [Name of Transferee]


                                          By:
                                              ----------------------------------
                                              Name:
                                              Title:

                                       C-2
<Page>

                                                                       EXHIBIT D


                       FORM OF CERTIFICATE TO BE DELIVERED
                          IN CONNECTION WITH TRANSFERS
                            PURSUANT TO REGULATION S


                                                                   _________,___


U.S. Bank Trust National Association
100 Wall Street, Suite 1600
New York, NY 10005
T: (212) 361-2525
F: (212) 509-3384
Attention:  Corporate Trust Department

              Re:   Inverness Medical Innovations, Inc. (the "ISSUER")
                    8 3/4% Senior Subordinated Notes Due 2012 (the "NOTES")
                    -------------------------------------------------------


Ladies and Gentlemen:

          In connection with our proposed sale of $[       ] aggregate principal
amount of the Notes, we confirm that such sale has been effected pursuant to and
in accordance with Regulation S under the U.S. Securities Act of 1933, as
amended (the "SECURITIES ACT"), and, accordingly, we represent that:

          (1)    the offer of the Notes was not made to a person in the United
     States;

          (2)    either (a) at the time the buy offer was originated, the
     transferee was outside the United States or we and any person acting on our
     behalf reasonably believed that the transferee was outside the United
     States, or (b) the transaction was executed in, on or through the
     facilities of a designated offshore securities market and neither we nor
     any person acting on our behalf knows that the transaction has been
     prearranged with a buyer in the United States;

          (3)    no directed selling efforts have been made in the United States
     in contravention of the requirements of Rule 903(b) or Rule 904(b) of
     Regulation S, as applicable;

          (4)    the transaction is not part of a plan or scheme to evade the
     registration requirements of the Securities Act; and

          (5)    we have advised the transferee of the transfer restrictions
     applicable to the Notes.

                                       D-1
<Page>

          You, as Trustee, the Issuer, counsel for the Issuer and others are
entitled to rely upon this letter and are irrevocably authorized to produce this
letter or a copy hereof to any interested party in any administrative or legal
proceedings or official inquiry with respect to the matters covered hereby.
Terms used in this certificate have the meanings set forth in Regulation S.


                                    Very truly yours,

                                    [Name of Transferor]


                                    By:
                                        ---------------------------------------
                                                Authorized Signatory

                                       D-2
<Page>

                                                                       EXHIBIT E

                                 NOTE GUARANTEE

          For value received, each of the undersigned (including any successor
Person under the Indenture) hereby unconditionally guarantees, jointly and
severally, to the extent set forth in the Indenture (as defined below) to the
Holder of this Note the payment of principal, premium, if any, and interest on
this Note in the amounts and at the times when due and interest on the overdue
principal, premium, if any, and interest, if any, of this Note when due, if
lawful, and, to the extent permitted by law, the payment or performance of all
other obligations of the Issuer under the Indenture or the Notes, to the Holder
of this Note and the Trustee, all in accordance with and subject to the terms
and limitations of this Note, the Indenture, including Article Eleven thereof,
and this Note Guarantee. This Note Guarantee will become effective in accordance
with Article Eleven of the Indenture and its terms shall be evidenced therein.
The validity and enforceability of any Note Guarantee shall not be affected by
the fact that it is not affixed to any particular Note.

          Capitalized terms used but not defined herein shall have the meanings
ascribed to them in the Indenture dated as of February 10, 2004, among Inverness
Medical Innovations, Inc., a Delaware corporation (the "ISSUER"), the Guarantors
named therein and U.S. Bank Trust National Association, as trustee (the
"TRUSTEE"), as amended or supplemented (the "INDENTURE").

          The obligations of the undersigned to the Holders of Notes and to the
Trustee pursuant to this Note Guarantee and the Indenture are expressly set
forth in Article Eleven of the Indenture and reference is hereby made to the
Indenture for the precise terms of the Note Guarantee and all of the other
provisions of the Indenture to which this Note Guarantee relates.

          No director, officer, employee, incorporator, stockholder, member or
manager of any Guarantor, as such, shall have any liability for any obligations
of such Guarantors under such Guarantors' Note Guarantee or the Indenture or for
any claim based on, in respect of, or by reason of, such obligation or its
creation.

          This Note Guarantee is subordinated in right of payment, in the manner
and to the extent set forth in Article Eleven of the Indenture, to the prior
payment in full in cash or cash equivalents of all Guarantor Senior Debt of the
Guarantors, whether outstanding on the date of the Indenture or thereafter
created, incurred, assumed or guaranteed.

          THIS NOTE GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK.

          This Note Guarantee is subject to release upon the terms set forth in
the Indenture.

                                       E-1
<Page>

          IN WITNESS WHEREOF, each Guarantor has caused its Note Guarantee to be
duly executed.

Date:


                                      [                                        ]



                                      By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                       E-2