<PAGE>   1


                                                                     EXHIBIT 4.4



                                     FORM OF
                             SUBSIDIARIES GUARANTEE

         GUARANTEE, dated as of December 1, 2000, made by each of the
corporations that are signatories hereto (the "Guarantors"), in favor of THE
CHASE MANHATTAN BANK, as administrative agent (in such capacity, the
"Administrative Agent"), for the banks and other financial institutions (the
"Lenders") from time to time parties to the Credit Agreement, dated as of
December 1, 2000 (as the same may be amended, supplemented or modified from time
to time, the "Credit Agreement"), among Sybron International Corporation, a
Wisconsin corporation (the "Borrower"), the Lenders, the Administrative Agent,
Bank One, NA, as Documentation Agent, Bank of America, N.A., as Syndication
Agent, and Chase Securities Inc., as Lead Arranger and Book Manager (in such
capacity, the "Arranger").



                                   WITNESSETH:


         WHEREAS, the Borrower and the Guarantors are members of the same
consolidated group of companies and engaged in related businesses, and each
Guarantor will derive substantial direct and indirect benefit from the making of
the Loans and the Letters of Credit (as defined in the Credit Agreement); and

         WHEREAS, it is a condition precedent to the obligation of the Lenders
to make their respective extensions of credit to the Borrower under the Credit
Agreement that the Guarantors shall have executed and delivered this Guarantee
to the Administrative Agent for the ratable benefit of the Lenders;

         NOW, THEREFORE, in consideration of the premises and to induce the
Administrative Agent and the Lenders to enter into the Credit Agreement and to
induce the Lenders to make their respective extensions of credit to the Borrower
under the Credit Agreement, the Guarantors hereby agree with the Administrative
Agent, for the ratable benefit of the Lenders, as follows:

Defined Terms. Unless otherwise defined herein, terms defined in the Credit
Agreement and used herein shall have the meanings given to them in the Credit
Agreement.

         As used herein "Obligations" means (i) the unpaid principal of and
interest on (including, without limitation, interest accruing after the maturity
of the Loans and interest accruing on or after the filing of any petition in
bankruptcy, or the commencement of any insolvency, reorganization or like
proceeding, relating to the Borrower, whether or not a claim for post-filing or
post-petition interest is allowed in such proceeding) the Notes and all other
obligations and liabilities of the Loan Parties to the Administrative Agent or
to the Lenders, whether direct or indirect, absolute or contingent, due or to
become due, or now existing or hereafter incurred, which may arise under, out
of, or in connection with, the Credit Agreement, the Notes, any other




<PAGE>   2

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Loan Document and any other document made, delivered or given in connection
herewith or therewith, whether on account of principal, interest, reimbursement
obligations, fees, indemnities, costs, expenses (including, without limitation,
all fees and disbursements of counsel to the Administrative Agent or to the
Lenders) or otherwise and (ii) all obligations of the Borrower to any Lender or
any Affiliate of any Lender under or in connection with any Interest Rate
Agreement or foreign exchange contract.

         As used herein "Solvent", when used with respect to any Person, means
that, as of any date of determination, (a) the amount of the "present fair
saleable value" of the assets of such Person will, as of such date, exceed the
amount of all "liabilities of such Person, contingent or otherwise", as of such
date, as such quoted terms are determined in accordance with applicable federal
and state laws governing determinations of the insolvency of debtors, (b) the
present fair saleable value of the assets of such Person will, as of such date,
be greater than the amount that will be required to pay the liability of such
Person on its debts as such debts become absolute and matured, (c) such Person
will not have, as of such date, an unreasonably small amount of capital with
which to conduct its business, and (d) such Person will be able to pay its debts
as they mature. For purposes of this definition, (i) "debt" means liability on a
"claim", and (ii) "claim" means any (x) right to payment, whether or not such a
right is reduced to judgment, liquidated, unliquidated, fixed, contingent,
matured, unmatured, disputed, undisputed, legal, equitable, secured or unsecured
or (y) right to an equitable remedy for breach of performance if such breach
gives rise to a right to payment, whether or not such right to an equitable
remedy is reduced to judgment, fixed, contingent, matured or unmatured,
disputed, undisputed, secured or unsecured.

         The words "hereof," "herein" and "hereunder" and words of similar
import when used in this Guarantee shall refer to this Guarantee as a whole and
not to any particular provision of this Guarantee, and Section and paragraph
references are to this Guarantee unless otherwise specified.

         The meanings given to terms defined herein shall be equally applicable
to both the singular and plural forms of such terms.

Guarantee. Subject to the provisions of paragraph 2(b), each of the Guarantors
hereby, jointly and severally, unconditionally and irrevocably, guarantees to
the Administrative Agent, for the ratable benefit of the Lenders and their
respective successors, indorsees, transferees and assigns, the prompt and
complete payment and performance by the Borrower when due (whether at the stated
maturity, by acceleration or otherwise) of the Obligations.

         Anything herein or in any other Loan Document to the contrary
notwithstanding, the maximum liability of each Guarantor hereunder and under the
other Loan Documents shall in no event exceed the amount which can be guaranteed
by such Guarantor under applicable federal and state laws relating to the
insolvency of debtors.



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                                                                               3


         Each Guarantor further agrees to pay any and all expenses (including,
without limitation, all fees and disbursements of counsel) which may be paid or
incurred by the Administrative Agent or any Lender in enforcing, or obtaining
advice of counsel in respect of, any rights with respect to, or collecting, any
or all of the Obligations and/or enforcing any rights with respect to, or
collecting against, such Guarantor under this Guarantee. This Guarantee shall
remain in full force and effect until the Obligations are paid in full and the
Commitments are terminated, notwithstanding that from time to time prior thereto
the Borrower may be free from any Obligations.

         Each Guarantor agrees that the Obligations may at any time and from
time to time exceed the amount of the liability of such Guarantor hereunder
without impairing this Guarantee or affecting the rights and remedies of the
Administrative Agent or any Lender hereunder.

         No payment or payments made by the Borrower, any of the Guarantors, any
other guarantor or any other Person or received or collected by the
Administrative Agent or any Lender from the Borrower, any of the Guarantors, any
other guarantor or any other Person by virtue of any action or proceeding or any
set-off or appropriation or application at any time or from time to time in
reduction of or in payment of the Obligations shall be deemed to modify, reduce,
release or otherwise affect the liability of any Guarantor hereunder which
shall, notwithstanding any such payment or payments other than payments made by
such Guarantor in respect of the Obligations or payments received or collected
from such Guarantor in respect of the Obligations, remain liable for the
Obligations up to the maximum liability of such Guarantor hereunder until the
Obligations are paid in full and the Commitments are terminated.

         Each Guarantor agrees that whenever, at any time, or from time to time,
it shall make any payment to the Administrative Agent or any Lender on account
of its liability hereunder, it will notify the Administrative Agent in writing
that such payment is made under this Guarantee for such purpose.

Right of Contribution. Each Guarantor hereby agrees that to the extent that a
Guarantor shall have paid more than its proportionate share of any payment made
hereunder, such Guarantor shall be entitled to seek and receive contribution
from and against any other Guarantor hereunder who has not paid its
proportionate share of such payment. Each Guarantor's right of contribution
shall be subject to the terms and conditions of Section 5 hereof. The provisions
of this Section shall in no respect limit the obligations and liabilities of any
Guarantor to the Administrative Agent and the Lenders, and each Guarantor shall
remain liable to the Administrative Agent and the Lenders for the full amount
guaranteed by such Guarantor hereunder.

Right of Set-off. Upon the occurrence of any Event of Default, each Guarantor
hereby irrevocably authorizes each Lender at any time and from time to time
without notice to such Guarantor or any other Guarantor, any such notice being
expressly waived by each Guarantor, to set-off and appropriate and apply any and
all deposits (general or special, time or demand, provisional or final), in any
currency, and any other credits, indebtedness or claims, in any currency, in
each case whether direct or indirect, absolute or contingent, matured or
unmatured, at any time held or owing by such Lender to or for the credit or the
account of such Guarantor, or any part thereof in such amounts as such Lender
may elect, against and on account of the




<PAGE>   4

                                                                               4


obligations and liabilities of such Guarantor to such Lender hereunder and
claims of every nature and description of such Lender against such Guarantor, in
any currency, whether arising hereunder, under the Credit Agreement, any Note,
any Loan Document or otherwise, as such Lender may elect, whether or not the
Administrative Agent or any Lender has made any demand for payment and although
such obligations, liabilities and claims may be contingent or unmatured. The
Administrative Agent and each Lender shall notify such Guarantor promptly of any
such set-off and the application made by the Administrative Agent or such
Lender, provided that the failure to give such notice shall not affect the
validity of such set-off and application. The rights of the Administrative Agent
and each Lender under this Section are in addition to other rights and remedies
(including, without limitation, other rights of set-off) which the
Administrative Agent or such Lender may have.

No Subrogation. Notwithstanding any payment or payments made by any of the
Guarantors hereunder or any set-off or application of funds of any of the
Guarantors by any Lender, no Guarantor shall be entitled to be subrogated to any
of the rights of the Administrative Agent or any Lender against the Borrower or
any other Guarantor or any collateral security or guarantee or right of offset
held by any Lender for the payment of the Obligations, nor shall any Guarantor
seek or be entitled to seek any contribution or reimbursement from the Borrower
or any other Guarantor in respect of payments made by such Guarantor hereunder,
until all amounts owing to the Administrative Agent and the Lenders by the
Borrower on account of the Obligations are paid in full and the Commitments are
terminated. If any amount shall be paid to any Guarantor on account of such
subrogation rights at any time when all of the Obligations shall not have been
paid in full, such amount shall be held by such Guarantor in trust for the
Administrative Agent and the Lenders, segregated from other funds of such
Guarantor, and shall, forthwith upon receipt by such Guarantor, be turned over
to the Administrative Agent in the exact form received by such Guarantor (duly
indorsed by such Guarantor to the Administrative Agent, if required), to be
applied against the Obligations, whether matured or unmatured, in such order as
the Administrative Agent may determine.

Amendments, etc. with respect to the Obligations; Waiver of Rights. Each
Guarantor shall remain obligated hereunder notwithstanding that, without any
reservation of rights against any Guarantor and without notice to or further
assent by any Guarantor, any demand for payment of any of the Obligations made
by the Administrative Agent or any Lender may be rescinded by such party and any
of the Obligations continued, and the Obligations, or the liability of any other
party upon or for any part thereof, or any collateral security or guarantee
therefor or right of offset with respect thereto, may, from time to time, in
whole or in part, be renewed, extended, amended, modified, accelerated,
compromised, waived, surrendered or released by the Administrative Agent or any
Lender, and the Credit Agreement, the Notes and the other Loan Documents and any
other documents executed and delivered in connection therewith may be amended,
modified, supplemented or terminated, in whole or in part, as the Administrative
Agent (or the Majority Lenders, as the case may be) may deem advisable from time
to time, and any collateral security, guarantee or right of offset at any time
held by the Administrative Agent or any Lender for the payment of the
Obligations may be sold, exchanged, waived, surrendered or released. Neither the
Administrative Agent nor any Lender shall have any obligation to protect,
secure, perfect or insure any Lien at any time held by it as security for the
Obligations or




<PAGE>   5

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for this Guarantee or any property subject thereto. When making any demand
hereunder against any of the Guarantors, the Administrative Agent or any Lender
may, but shall be under no obligation to, make a similar demand on the Borrower
or any other Guarantor or guarantor, and any failure by the Administrative Agent
or any Lender to make any such demand or to collect any payments from the
Borrower or any such other Guarantor or guarantor or any release of the Borrower
or such other Guarantor or guarantor shall not relieve any of the Guarantors in
respect of which a demand or collection is not made or any of the Guarantors not
so released of their several obligations or liabilities hereunder, and shall not
impair or affect the rights and remedies, express or implied, or as a matter of
law, of the Administrative Agent or any Lender against any of the Guarantors.
For the purposes hereof "demand" shall include the commencement and continuance
of any legal proceedings.

Guarantee Absolute and Unconditional. Each Guarantor waives any and all notice
of the creation, renewal, extension or accrual of any of the Obligations and
notice of or proof of reliance by the Administrative Agent or any Lender upon
this Guarantee or acceptance of this Guarantee, the Obligations, and any of
them, shall conclusively be deemed to have been created, contracted or incurred,
or renewed, extended, amended or waived, in reliance upon this Guarantee; and
all dealings between the Borrower and any of the Guarantors, on the one hand,
and the Administrative Agent and the Lenders, on the other hand, likewise shall
be conclusively presumed to have been had or consummated in reliance upon this
Guarantee. Each Guarantor waives diligence, presentment, protest, demand for
payment and notice of default or nonpayment to or upon the Borrower or any of
the Guarantors with respect to the Obligations. Each Guarantor understands and
agrees that this Guarantee shall be construed as a continuing, absolute and
unconditional guarantee of payment without regard to (a) the validity,
regularity or enforceability of the Credit Agreement, any Note or any other Loan
Document, any of the Obligations or any other collateral security therefor or
guarantee or right of offset with respect thereto at any time or from time to
time held by the Administrative Agent or any Lender, (b) any defense, set-off or
counterclaim (other than a defense of payment or performance) which may at any
time be available to or be asserted by the Borrower against the Administrative
Agent or any Lender, or (c) any other circumstance whatsoever (with or without
notice to or knowledge of the Borrower or such Guarantor) which constitutes, or
might be construed to constitute, an equitable or legal discharge of the
Borrower for the Obligations, or of such Guarantor under this Guarantee, in
bankruptcy or in any other instance. When pursuing its rights and remedies
hereunder against any Guarantor, the Administrative Agent and any Lender may,
but shall be under no obligation to, pursue such rights and remedies as it may
have against the Borrower or any other Person or against any other collateral
security or guarantee for the Obligations or any right of offset with respect
thereto, and any failure by the Administrative Agent or any Lender to pursue
such other rights or remedies or to collect any payments from the Borrower or
any such other Person or to realize upon any such collateral security or
guarantee or to exercise any such right of offset, or any release of the
Borrower or any such other Person or any such collateral security, guarantee or
right of offset, shall not relieve such Guarantor of any liability hereunder,
and shall not impair or affect the rights and remedies, whether express, implied
or available as a matter of law, of the Administrative Agent and the Lenders
against such Guarantor. This Guarantee shall remain in full force and effect and
be binding in accordance with and to the extent of its terms upon each Guarantor
and the successors and assigns thereof, and shall inure to



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the benefit of the Administrative Agent and the Lenders, and their respective
successors, indorsees, transferees and assigns, until all the Obligations and
the obligations of each Guarantor under this Guarantee shall have been satisfied
by payment in full and the Commitments shall be terminated, notwithstanding that
from time to time during the term of the Credit Agreement the Borrower may be
free from any Obligations.

Reinstatement. This Guarantee shall continue to be effective, or be reinstated,
as the case may be, if at any time payment, or any part thereof, of any of the
Obligations is rescinded or must otherwise be restored or returned by the
Administrative Agent or any Lender upon the insolvency, bankruptcy, dissolution,
liquidation or reorganization of the Borrower or any Guarantor, or upon or as a
result of the appointment of a receiver, intervenor or conservator of, or
trustee or similar officer for, the Borrower or any Guarantor or any substantial
part of its property, or otherwise, all as though such payments had not been
made.

Payments. Each Guarantor hereby guarantees that payments hereunder will be paid
to the Administrative Agent without set-off or counterclaim in U.S. Dollars at
the office of the Administrative Agent located at 270 Park Avenue, New York, New
York 10017.

Representations and Warranties. Each Guarantor hereby represents and warrants
that:

         it is a corporation duly organized, validly existing and in good
standing (or similar concept under applicable law) under the laws of the
jurisdiction of its incorporation and has the corporate power and authority and
the legal right to own and operate its property, to lease the property it
operates and to conduct the business in which it is currently engaged;

         it has the corporate power and authority and the legal right to execute
and deliver, and to perform its obligations under, this Guarantee, and has taken
all necessary corporate action to authorize its execution, delivery and
performance of this Guarantee;

         this Guarantee constitutes a legal, valid and binding obligation of
such Guarantor enforceable in accordance with its terms, except as affected by
bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and
other similar laws relating to or affecting the enforcement of creditors' rights
generally, general equitable principles (whether considered in a proceeding in
equity or at law) and an implied covenant of good faith and fair dealing;

         the execution, delivery and performance of this Guarantee will not
violate any provision of any Requirement of Law or Contractual Obligation of
such Guarantor and will not result in or require the creation or imposition of
any Lien on any of the properties or revenues of such Guarantor pursuant to any
Requirement of Law or Contractual Obligation of the Guarantor;

         no consent or authorization of, filing with, or other act by or in
respect of, any arbitrator or Governmental Authority and no consent of any other
Person (including, without limitation, any stockholder or creditor of such
Guarantor) is required in connection with the execution, delivery, performance,
validity or enforceability of this Guarantee;



<PAGE>   7

                                                                               7


         no litigation, investigation or proceeding of or before any arbitrator
or Governmental Authority is pending or, to the knowledge of such Guarantor,
threatened by or against such Guarantor or against any of its properties or
revenues (1) with respect to this Guarantee or any of the transactions
contemplated hereby or (2) which could reasonably be expected to have a Material
Adverse Effect;

         it has good record and marketable title in fee simple to, or a valid
leasehold interest in, all its real property, and good title to, or a valid
leasehold interest in, all its other property, and none of such property is
subject to any Lien of any nature whatsoever except as permitted by subsection
7.3 of the Credit Agreement; and

         it is, and after giving effect to the Transaction and the incurrence of
all Indebtedness and obligations being incurred in connection herewith and
therewith will be and will continue to be, Solvent (in the case of each material
Guarantor).

         Each Guarantor agrees that the foregoing representations and warranties
shall be deemed to have been made by such Guarantor on the date of each
borrowing by the Borrower under the Credit Agreement on and as of the relevant
Borrowing Date as though made hereunder on and as of such date.

Authority of Administrative Agent. Each Guarantor acknowledges that the rights
and responsibilities of the Administrative Agent under this Guarantee with
respect to any action taken by the Administrative Agent or the exercise or
non-exercise by the Administrative Agent of any option, right, request, judgment
or other right or remedy provided for herein or resulting or arising out of this
Guarantee shall, as between the Administrative Agent and the Lenders, be
governed by the Credit Agreement and by such other agreements with respect
thereto as may exist from time to time among them, but, as between the
Administrative Agent and such Guarantor, the Administrative Agent shall be
conclusively presumed to be acting as agent for the Lenders with full and valid
authority so to act or refrain from acting, and no Guarantor shall be under any
obligation, or entitlement, to make any inquiry respecting such authority.

Notices. All notices, requests and demands to or upon the Administrative Agent,
any Lender or any Guarantor to be effective shall be in writing (or by telex,
fax or similar electronic transfer confirmed in writing) and shall be deemed to
have been duly given or made (1) when delivered by hand or (2) if given by mail,
three days after deposited in the mails, postage prepaid, or (3) if by telex,
fax or similar electronic transfer, when sent and receipt has been confirmed,
addressed as follows:

         if to the Administrative Agent or any Lender, at its address or
transmission number for notices provided in or referred to in subsection 11.2 of
the Credit Agreement; and

         if to any Guarantor, at its address or transmission number for notices
set forth under its name below.

         The Administrative Agent, each Lender and each Guarantor may change its
address and transmission numbers for notices by notice in the manner provided in
this Section.


<PAGE>   8

                                                                               8

Counterparts. This Guarantee may be executed by one or more of the Guarantors on
any number of separate counterparts, and all of said counterparts taken together
shall be deemed to constitute one and the same instrument. A set of the
counterparts of this Guarantee signed by all the Guarantors shall be lodged with
the Administrative Agent.

Severability. Any provision of this Guarantee which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

Integration. This Guarantee represents the agreement of each Guarantor with
respect to the subject matter hereof and there are no promises or
representations by the Administrative Agent or any Lender relative to the
subject matter hereof not reflected herein.

Amendments in Writing; No Waiver; Cumulative Remedies. a) None of the terms or
provisions of this Guarantee may be waived, amended, supplemented or otherwise
modified except by a written instrument executed by each Guarantor and the
Administrative Agent (other than supplements, in form and substance acceptable
to the Administrative Agent, for the purpose of adding new Guarantors), provided
that any provision of this Guarantee may be waived by the Administrative Agent
and the Lenders in a letter or agreement executed by the Administrative Agent or
by telex or facsimile transmission from the Administrative Agent.

         Neither the Administrative Agent nor any Lender shall by any act
(except by a written instrument pursuant to paragraph 16(a) hereof), delay,
indulgence, omission or otherwise be deemed to have waived any right or remedy
hereunder or to have acquiesced in any Default or Event of Default or in any
breach of any of the terms and conditions hereof. No failure to exercise, nor
any delay in exercising, on the part of the Administrative Agent or any Lender,
any right, power or privilege hereunder shall operate as a waiver thereof. No
single or partial exercise of any right, power or privilege hereunder shall
preclude any other or further exercise thereof or the exercise of any other
right, power or privilege. A waiver by the Administrative Agent or any Lender of
any right or remedy hereunder on any one occasion shall not be construed as a
bar to any right or remedy which the Administrative Agent or such Lender would
otherwise have on any future occasion.

         The rights and remedies herein provided are cumulative, may be
exercised singly or concurrently and are not exclusive of any other rights or
remedies provided by law.



<PAGE>   9


                                                                               9

Section Headings. The Section headings used in this Guarantee are for
convenience of reference only and are not to affect the construction hereof or
be taken into consideration in the interpretation hereof.

Successors and Assigns. This Guarantee shall be binding upon the successors and
assigns of each Guarantor and shall inure to the benefit of the Administrative
Agent and the Lenders and their successors and assigns.

GOVERNING LAW. THIS GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

Submission To Jurisdiction. Each of the Guarantors hereby irrevocable and
unconditionally:

         submits for itself and its property in any legal action or proceeding
relating to this Guarantee and the other Loan Documents to which it is a party,
or for recognition and enforcement of any judgement in respect thereof, to the
non-exclusive general jurisdiction of the Courts of the United States of America
for the Southern District of New York, and appellate courts from any thereof;

         consents that any such action or proceeding may be brought in such
courts and waives any objection that it may now or hereafter have to the venue
of any such action or proceeding in any such court or that such action or
proceeding was brought in an inconvenient court and agrees not to pleas or claim
the same;

         agrees that service of process in any such action or proceeding may be
effected by mailing a copy thereof by registered or certified mail (or any
substantially similar form of mail), postage prepaid, to such Guarantor at its
address set forth under its signature below or at such other address of which
the Administrative Agent shall have been notified pursuant to the terms of
Section 12 hereof;

         agrees that nothing herein shall affect the right to effect service of
process in any other manner permitted by law or shall limit the right to sue in
any other jurisdiction; and

         waives, to the maximum extent not prohibited by law, any right it may
have to claim or recover in any legal action or proceeding referred to in this
subsection any special, exemplary, punitive or consequential damages.

Acknowledgements. Each Guarantor hereby acknowledges that:

         it has been advised by counsel in the negotiation, execution and
delivery of this Guarantee and the other Loan Documents;

         neither the Administrative Agent nor any Lender has any fiduciary
relationship with or duty to such Guarantor arising out of or in connection with
this Guarantee or any of the other Loan Documents, and the relationship between
the Administrative Agent and the Lenders, on



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                                                                              10

one hand, and the Guarantors on the other hand, in connection herewith or
therewith is solely that of creditor and debtor; and

         no joint venture is created hereby or by the other Loan Documents or
otherwise exists by virtue of the transactions contemplated hereby among the
Lenders or among the Guarantors and the Lenders.

WAIVERS OF JURY TRIAL. THE GUARANTORS AND THE ADMINISTRATIVE AGENT AND THE
LENDERS BY THEIR ACCEPTANCE HEREOF HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE
TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS GUARANTEE OR
ANY OTHER LOAN DOCUMENT AND FOR ANY COUNTERCLAIM THEREIN.



<PAGE>   11

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         IN WITNESS WHEREOF, each of the undersigned has caused this Guarantee
to be duly executed and delivered by its duly authorized officer as of the day
and year first above written.

                                     Alexon-Trend, Inc.
                                     Applied Biotech, Inc.
                                     Barnstead Thermolyne Corporation
                                     Chase Scientific Glass, Inc.
                                     Consolidated Technologies, Inc.
                                     Erie Scientific Company
                                     Erie Scientific Company of Puerto Rico
                                     Ever Ready Thermometer Co., Inc.
                                     Genevac Inc.
                                     Lab-Line Instruments, Inc.
                                     Lab Vision Corporation
                                     Matrix Technologies Corporation
                                     Microgenics Corporation
                                     Molecular BioProducts, Inc.
                                     Nalge Nunc International Corporation
                                     National Scientific Company
                                     The Naugatuck Glass Company
                                     NERL Diagnostics Corporation
                                     Owl Separation Systems, Inc.
                                     Remel Inc.
                                     Richard-Allan Scientific Company
                                     Robbins Scientific Corporation
                                     Samco Scientific Corporation
                                     Summit Biotechnology, Inc.
                                     Sybron Laboratory Products Corporation
                                     Sybron Transition Corp.
                                     Vacuum Process Technology, Inc.


                                       /s/ JEFFREY C. LEATHE
                                     -----------------------------------------
                                     By: Jeffrey C. Leathe
                                        Title: Assistant Treasurer


<PAGE>   12


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                                    Address for Notices:

                                c/o Sybron International Corporation
                                         dba Apogent Technologies
                                         10 Pleasant Street
                                         Suite 300
                                         Portsmouth, New Hampshire 03801
                                         Attention: General Counsel
                                         Telecopy: (603) 436-3719