Item #872053

Dometic Marvair CR330 Condensation Removal Kit - 225600036

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Dometic Marvair CR330 Condensation Removal Kit - 225600036

Item # 872053


The Marvair CR330 removes the condensate water produced during the cooling cycle of your Marvair reverse-cycle air conditioner and discharges the condensate into the air conditioner's outlet water line.


  • The condensate is pumped overboard any time the air conditioner's circulation pump is working and sufficient condensate is in the condensate pan of your Marvair unit
  • By operating on the Venturi effect, a separate condensate pump is not required
  • A water filter/strainer, a reducer and a check valve are also provided and must be installed with the CR330
  • The filter prevents debris from entering the CR330 and obstructing the water flow
  • The check valve allows the condensate to flow in only one direction
  • The flow rate, measured at the air conditioner, must be at least 1.0 GPM (3.8 LPM) but no more than 4.6 GPM (17.4 LPM)
    • Flow rates less than 1.0 GPM (3.8 LPM) may result in improper removal of the condensate
    • Flow rates greater than 4.6 GPM (17.4 LPM) may result in a restriction of water flow to the air conditioner
    • Always refer to the air conditioner's Owner's manual or Product Data Sheet to determine the correct water flow for proper operation of the Marvair air conditioner

Owner's Manual

Installation Instructions

Part Numbers for Dometic Marvair CR330 Condensation Removal Kit - 225600036

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Rated 5 out of 5 by from Condensation is no longer going to the bilge I always had excess water in my drip pan because it didn't drain properly. After installing the CR330 I now no longer have excess water draining into the bilge. It works great. I did have to add a small hose to the drip pan and it only would leave behind less than 1/16" of water. I do recommend this. I am out on the water in the Chesapeake Bay over 100 days a year. It is a little expensive for the items that you get but one good thing is that you really don't need anything else to install.
Date published: 2023-08-08
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