Exhibit 10.15

WATER PIK TECHNOLOGIES, INC.  1999 NON-EMPLOYEE DIRECTOR STOCK  COMPENSATION PLAN, AS AMENDED

ARTICLE I.
GENERAL

1.1.Purpose.It is the purpose of the Plan to promote the interests of the Company and its stockholders by
attracting, retaining and providing an incentive to Non-Employee Directors through the acquisition of a proprietary interest in the Company and an increased personal interest in its
performance. This purpose will be served by:



1.2.Adoption and Term.The Plan has been approved by the Board and shall become effective as of the Effective
Date (as hereinafter defined). The Plan shall terminate without further action upon the earlier of (a) the tenth anniversary of the Effective Date, or (b) the first date upon which no
shares of Common Stock remain available for issuance under the Plan.

1.3.Definitions.As used herein the following terms have the following meanings:



---



2

---



1.4.Shares Subject to the Plan.The shares to be offered under the Plan shall consist of the Company's
authorized but unissued Common Stock or treasury shares and, subject to adjustment as provided in Section 5.1 hereof, the aggregate amount of such stock which may be issued or subject to Stock
Options
issued hereunder shall not exceed 200,000 shares. If any Stock Option granted under the Plan shall expire or terminate for any reason, without having been exercised or vested in full, as the case may
be, the unpurchased shares subject thereto shall again be available for issuance under the Plan. Stock Options granted under the Plan will not be qualified as "incentive stock options" under
Section 422 of the Code.

ARTICLE II.
ADMINISTRATION

2.1.The Board.The Plan shall be administered by the Board. Subject to the provisions of the Plan, the Board
shall interpret the Plan, promulgate, amend, and rescind rules and regulations relating

3

---

to the Plan and make all other determinations necessary or advisable for its administration. Interpretation and construction of any provision of the Plan by the Board shall be final and conclusive.
Notwithstanding the foregoing, the Board shall have or exercise no discretion with respect to the selection of persons eligible to participate hereunder, the determination of the number of shares of
Common Stock or number of Stock Options issuable to any person or any other aspect of Plan administration with respect to which such discretion is not permitted in order for grants of shares of Common
Stock and Stock Options to be exempt under Rule 16b-3 promulgated under the Exchange Act.

ARTICLE III.
PARTICIPATION

3.1.Participants.Each Non-Employee Director shall participate in the Plan on the terms and
conditions hereinafter set forth.

ARTICLE IV.
PAYMENT OF DIRECTOR'S FEES

4.1.General.The Director's Retainer Fee Payment shall be paid to each Non-Employee Director, as of
each Payment Date, as set forth in the Plan and subject to such other payment policies and procedures
as the Board may establish from time to time. If, for the applicable Compensation Year, a Non-Employee Director has not made an election pursuant to Section 4.2 to receive Common
Stock in lieu of at least twenty-five percent (25%) of the Director's Retainer Fee Payment, then seventy-five percent (75%) of such director's Retainer Fee Payment shall be
paid in cash and twenty-five percent (25%) of the Director's Retainer Fee Payment shall be paid in the form of Common Stock.

4.2.Non-Employee Director Notice.A Non-Employee Director may file with the Secretary
of the Company or other designee of the Board of Directors prior to the commencement of a Compensation Year a Non-Employee Director Notice making an election to receive either
twenty-five percent (25%), fifty percent (50%), seventy-five percent (75%) or one hundred (100%) of his or her Director's Retainer Fee Payment in the form of Common Stock with
the balance to be paid in cash. If a Director does not timely file an election, he or she shall receive twenty-five percent (25%) of the Director's Retainer Fee Payment in Common Stock and
seventy-five percent (75%) in cash. Notwithstanding the foregoing, elections to receive Common Stock may be made at any time during a Compensation Year so long as such elections are made
irrevocably in advance of receiving the corresponding Common Stock and approved in accordance with Rule 16b-3 under the Exchange Act.

4.3Conversion of Retainer Fee Payment to Shares.Each Non-Employee Director who pursuant to
Section 4.1 or 4.2 is to receive Common Stock as all or part of his or her Director's Retainer Fee Payment with respect to a Compensation Year and who is elected or reelected or is a continuing
Non-Employee Director as of the date of commencement of such Compensation Year, shall receive as of the first business day of January during such Compensation Year a number of shares of
Common Stock equal to the quotient obtained by dividing (i) the amount of the Director's Retainer Fee Payment to be paid in the form of Common Stock by (ii) the Fair Market Value of the
Common Stock per share on the first business day of January. Cash shall be paid in lieu of any fractional shares.

4.4Stock Options.No Stock Options shall be issued under the Plan on or after the Third Amendment Date. With
regard to Stock Options granted prior to the Third Amendment Date, Sections 4.4(a) through (f) shall remain valid where applicable.



4

---



4.5Restricted Stock.



5

---



6

---



ARTICLE V.
MISCELLANEOUS

5.1.Adjustments Upon Changes in Common Stock.The number and kind of shares available for issuance under the
Plan, and the number and kind of shares subject to, and the exercise price of, outstanding Stock Options, shall be appropriately adjusted to prevent dilution or enlargement of rights by reason of any
stock dividend, stock split, combination or exchange of shares, recapitalization, merger, consolidation or other change in capitalization with a similar substantive effect upon the Plan or the shares
issuable under the Plan.

5.2.Amendment and Termination.The Board shall have complete power and authority to amend the Plan at any time;
provided, however, that the Board shall not, without the affirmative approval of the stockholders of the Company, make any amendment which requires stockholder approval under any applicable law or
regulation of a national stock exchange on which the Common Stock is traded. The Board shall have the right and the power to terminate the Plan at any time. No amendment or termination of the Plan
may, without the consent of the Non-Employee Director, adversely affect the right of such Non-Employee Director with respect to any Stock Options then outstanding.

5.3.Requirements of Law.The issuance of Common Stock under the Plan shall be subject to all applicable laws,
rules and regulations and to such approval by governmental agencies as may be required.

5.4.No Guarantee of Membership.Nothing in the Plan shall confer upon a Non-Employee Director any
right to continue to serve as a Director.

5.5Construction.Words of any gender used in the Plan shall be construed to include any other gender, unless
the context requires otherwise.

5.6Governing Law.This Plan shall be governed by, construed and interpreted in accordance with the laws of the
State of Delaware, without regard to its principles of conflict of law, as to all matters, including matters of validity, construction, effect, performance and remedies.

Adopted by Board on 11/12/99.
Approved by Shareholder(s) on 11/12/99.
Amended on 6/27/00.
Amended on 1/23/01.
Amended on 10/23/02.

7

---

QuickLinks