EXHIBIT 10.6


 
                    INDEMNITY, SUBROGATION and CONTRIBUTION AGREEMENT dated as
               of April 7, 1998, among HUDSON RESPIRATORY INC., a California
               corporation (the "Borrower"), RIVER HOLDING CORP., a Delaware
               Corporation ("Holding"), each Subsidiary of the Borrower listed
               on Schedule I hereto (each such subsidiary individually a
               "Subsidiary Guarantor" and collectively the "Subsidiary
               Guarantors"; Holding and Subsidiary Guarantors are referred to
               collectively herein as the "Guarantors") and BANKERS TRUST
               COMPANY, a New York banking corporation ("BTCo."), as collateral
               agent (in such capacity, the "Collateral Agent") for the Secured
               Parties (as defined in the Credit Agreement referred to below).


     Reference is made to (a) the Credit Agreement dated as of April 7, 1998 (as
amended, supplemented or otherwise modified from time to time, the "Credit
Agreement"), among the Borrower, RIVER HOLDING CORP., the lenders from time to
time party thereto (the "Lenders") and BTCo., as administrative agent for the
Lenders (in such capacity, the "Administrative Agent"), Collateral Agent,
swingline lender and issuing bank (in such capacity, the "Issuing Bank") and (b)
the Holding Guarantee Agreement dated as of April 7, 1998 (as amended,
supplemented or otherwise modified from time to time, the "Holding Guarantee
Agreement"), between Holding and the Collateral Agent.

     The Lenders have agreed to make Loans to the Borrower, and the Issuing Bank
has agreed to issue Letters of Credit for the account of the Borrower, pursuant
to, and upon the terms and subject to the conditions specified in, the Credit
Agreement. The Guarantors have guaranteed such Loans and the other Obligations
(as defined in the Guarantee Agreement) of the Borrower under the Credit
Agreement pursuant to the Guarantee Agreement; certain Guarantors have granted
Liens on and security interests in certain of their assets to secure such
guarantees. The obligations of the Lenders to make Loans and of the Issuing Bank
to issue Letters of Credit are conditioned on, among other things, the execution
and delivery by the Borrower and the Guarantors of an agreement in the form
hereof.

     Accordingly, the Borrower, each Guarantor and the Collateral Agent agree as
follows:

     SECTION 1.  Indemnity and Subrogation.  In addition to all such rights of
indemnity and subrogation as the Guarantors may have under applicable law (but
subject to Section 3), the Borrower agrees that (a) in the event a payment shall
be made by any Guarantor under the Guarantee Agreement, the Borrower shall
indemnify such Guarantor for the full amount of such payment and such Guarantor
shall be subrogated to the rights of the person to whom such payment shall have
been made to the extent of such payment and (b) in the event any assets of any
Guarantor shall be sold pursuant to any Security Document to satisfy a claim of
any Secured Party, the Borrower shall indemnify such Guarantor in an amount
equal to the greater of the book value or the fair market value of the assets so
sold.

      SECTION 2.  Contribution and Subrogation.  Each Guarantor (a "Contributing
Guarantor") agrees (subject to Section 3) that, in the event a payment shall be
made by

 
                                                                               2

any other Guarantor under the Guarantee Agreement or assets of any other
Guarantor shall be sold pursuant to any Security Document to satisfy a claim of
any Secured Party and such other Guarantor (the "Claiming Guarantor") shall not
have been fully indemnified by the Borrower as provided in Section 1, the
Contributing Guarantor shall indemnify the Claiming Guarantor in an amount equal
to the amount of such payment or the greater of the book value or the fair
market value of such assets, as the case may be, in each case multiplied by a
fraction of which the numerator shall be the net worth of the Contributing
Guarantor on the date hereof and the denominator shall be the aggregate net
worth of all the Guarantors on the date hereof (or, in the case of any Guarantor
becoming a party hereto pursuant to Section 12, the date of the Supplement
hereto executed and delivered by such Guarantor). Any Contributing Guarantor
making any payment to a Claiming Guarantor pursuant to this Section 2 shall be
subrogated to the rights of such Claiming Guarantor under Section 1 to the
extent of such payment.

      SECTION 3.  Subordination.  Notwithstanding any provision of this
Agreement to the contrary, all rights of the Guarantors under Sections 1 and 2
and all other rights of indemnity, contribution or subrogation under applicable
law or otherwise shall be fully subordinated to the indefeasible payment in full
in cash of the Obligations.  No failure on the part of the Borrower or any
Guarantor to make the payments required by Sections 1 and 2 (or any other
payments required under applicable law or otherwise) shall in any respect limit
the obligations and liabilities of any Guarantor with respect to its obligations
hereunder, and each Guarantor shall remain liable for the full amount of the
obligations of such Guarantor hereunder.

      SECTION 4.  Termination.  This Agreement shall survive and be in full
force and effect so long as any Obligation is outstanding and has not been
indefeasibly paid in full in cash, and so long as the L/C Exposure has not been
reduced to zero or any of the Commitments under the Credit Agreement have not
been terminated, and shall continue to be effective or be reinstated, as the
case may be, if at any time payment, or any part thereof, of any Obligation is
rescinded or must otherwise be restored by any Secured Party or any Guarantor
upon the bankruptcy or reorganization of the Borrower, any Guarantor or
otherwise.

      SECTION 5.  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD
TO PRINCIPLES OF CONFLICTS OF LAWS.

      SECTION 6.  No Waiver; Amendment.  (a) No failure on the part of the
Collateral Agent or any Guarantor to exercise, and no delay in exercising, any
right, power or remedy hereunder shall operate as a waiver thereof, nor shall
any single or partial exercise of any such right, power or remedy by the
Collateral Agent or any Guarantor preclude any other or further exercise thereof
or the exercise of any other right, power or remedy.  All remedies hereunder are
cumulative and are not exclusive of any other remedies provided by law.  None of
the Collateral Agent and the Guarantors shall be deemed to have waived any
rights hereunder unless such waiver shall be in writing and signed by such
parties.

     (b) Neither this Agreement nor any provision hereof may be waived, amended
or modified except pursuant to a written agreement entered into between the
Borrower, the Guarantors and the Collateral Agent, with the prior written
consent of the Required Lenders (except as otherwise provided in the Credit
Agreement).

 
                                                                               3

      SECTION 7.  Notices.  All communications and notices hereunder shall be in
writing and given as provided in the Guarantee Agreement and addressed as
specified therein.

      SECTION 8.  Binding Agreement; Assignments.  Whenever in this Agreement
any of the parties hereto is referred to, such reference shall be deemed to
include the successors and assigns of such party; and all covenants, promises
and agreements by or on behalf of the parties that are contained in this
Agreement shall bind and inure to the benefit of their respective successors and
assigns.  Neither the Borrower nor any Guarantor may assign or transfer any of
its rights or obligations hereunder (and any such attempted assignment or
transfer shall be void) without the prior written consent of the Required
Lenders.  Notwithstanding the foregoing, at the time any Guarantor is released
from its obligations under the Guarantee Agreement in accordance with such
Guarantee Agreement and the Credit Agreement, such Guarantor will cease to have
any rights or obligations under this Agreement.

      SECTION 9.  Survival of Agreement; Severability.  (a) All covenants and
agreements made by the Borrower and each Guarantor herein and in the
certificates or other instruments prepared or delivered in connection with
this Agreement or the other Credit Documents shall be considered to have been
relied upon by the Collateral Agent, the other Secured Parties and each
Guarantor and shall survive the making by the Lenders of the Loans and the
issuance of the Letters of Credit by the Issuing Bank, and shall continue in
full force and effect as long as the principal of or any accrued interest on any
Loans or any other fee or amount payable under the Credit Agreement or this
Agreement or under any of the other Credit Documents is outstanding and unpaid
or the L/C Exposure does not equal zero and as long as the Commitments have not
been terminated.

     (b) In case any one or more of the provisions contained in this Agreement
should be held invalid, illegal or unenforceable in any respect, no party hereto
shall be required to comply with such provision for so long as such provision is
held to be invalid, illegal or unenforceable, but the validity, legality and
enforceability of the remaining provisions contained herein shall not in any way
be affected or impaired thereby.  The parties shall endeavor in good-faith
negotiations to replace the invalid, illegal or unenforceable provisions with
valid provisions the economic effect of which comes as close as possible to that
of the invalid, illegal or unenforceable provisions.

      SECTION 10.  Counterparts.  This Agreement may be executed in counterparts
(and by different parties hereto on different counterparts), each of which shall
constitute an original, but all of which when taken together shall constitute a
single contract.  This Agreement shall be effective with respect to any
Guarantor when a counterpart bearing the signature of such Guarantor shall have
been delivered to the Collateral Agent.  Delivery of an executed signature page
to this Agreement by facsimile transmission shall be as effective as delivery of
a manually signed counterpart of this Agreement.

      SECTION 11.  Rules of Interpretation.  The rules of interpretation
specified in Section 1.02 of the Credit Agreement shall be applicable to this
Agreement.

      SECTION 12.  Jurisdiction; Consent to Service of Process.  (a)  Each
Guarantor hereby irrevocably and unconditionally submits, for itself and its
property, to the nonexclusive jurisdiction of any New York State court or
Federal court of the United States of America sitting in New York City, and any
appellate court from any thereof, in any action or proceeding arising out of or
relating to this Agreement or the other Credit Documents, or for recognition or
enforcement of any judgment, and each of the parties hereto hereby irrevocably
and unconditionally agrees that, to the extent permitted by

 
                                                                               4

applicable law, all claims in respect of any such action or proceeding may be
heard and determined in such New York State court or, to the extent permitted by
law, in such Federal court. Each of the parties hereto agrees that a final
judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions by suit on the judgment or in any other manner
provided by law. Nothing in this Agreement shall affect any right that the
Collateral Agent or any other Secured Party may otherwise have to bring any
action or proceeding relating to this Agreement or the other Credit Documents
against any Guarantor or its properties in the courts of any jurisdiction.

     (b)  Each Guarantor hereby irrevocably and unconditionally waives, to the
fullest extent it may legally and effectively do so, any objection that it may
now or hereafter have to the laying of venue of any suit, action or proceeding
arising out of or relating to this Agreement or the other Credit Documents in
any New York State or Federal court.  Each of the parties hereto hereby
irrevocably waives, to the fullest extent permitted by law, the defense of an
inconvenient forum to the maintenance of such action or proceeding in any such
court.

     (c)  Each party to this Agreement irrevocably consents to service of
process in the manner provided for notices in Section 7.  Nothing in this
Agreement will affect the right of any party to this Agreement to serve process
in any other manner permitted by law.

      SECTION 13.  Additional Guarantors.  Pursuant to Section 5.11 of the
Credit Agreement, each Domestic Subsidiary of the Borrower that was not in
existence or not such a Subsidiary on the date of the Credit Agreement is
required to enter into the Guarantee Agreement as a Guarantor upon becoming such
a Subsidiary.  Upon execution and delivery, after the date hereof, by the
Collateral Agent and such a Subsidiary of an instrument in the form of Annex 1
hereto, such Subsidiary shall become a Guarantor hereunder with the same force
and effect as if originally named as a Guarantor hereunder.  The execution and
delivery of any instrument adding an additional Guarantor as a party to this
Agreement shall not require the consent of any Guarantor hereunder.  The rights
and obligations of each Guarantor hereunder shall remain in full force and
effect notwithstanding the addition of any new Guarantor as a party to this
Agreement.

 
                                                                               5

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their duly authorized officers as of the date first appearing above.


                                 HUDSON RESPIRATORY INC.,
                  
                                         by /s/ Richard W. Johansen
                                           -------------------------
                                           Name:  Richard W. Johansen
                                           Title: President and Chief 
                                                  Financial Officer
                  
                  
                                         by /s/ Jay R. Ogram
                                           -------------------------
                                           Name:  Jay R. Ogram
                                           Title: Chief Financial Officer
                  
                  
                                 RIVER HOLDING CORP.,  as a Guarantor,
                  
                                         by /s/ Charles P. Rullman 
                                           -------------------------
                                           Name:  Charles P. Rullman 
                                           Title: President
                  
                                 BANKERS TRUST COMPANY, as Collateral
                                 Agent,
                  
                                         by /s/ Robert R. Telesca 
                                           -------------------------
                                           Name:  Robert R. Telesca 
                                           Title: Assistant Vice President