Dometic 385311581 2" Duckbill Valve Kit

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DometicSKU: 385311581

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VG4 J-Series Vacuum Generator
VG4 J series Vacuum Pumps
Large in-line Check Valves


Dometic 385311581 2" Duckbill Valve Kit. Pack of 4 black 2" duckbill valve kit for Dometic toilets. These duckbill valves are designed for use with the VG4 J-Series Vacuum Generator and M-Pump or large in-line check valves (308300011).

When troubleshooting a vacuflush system, it is recommended to begin with a new set of duckbill valves. If the vacuum pump is no longer shutting off, it's an indication to replace the duckbills. All VG4 Vacuum Generators and M-Pumps include four valves. When the pump body is removed from the tank, some customers opt to replace the pump-to-tank O-ring for comprehensive maintenance.


  • 4-2″ Duckbill valves
  • For use with All VG4 J series Vacuum Pumps
  • Can be sued in 2″ inline check valves


brand Dometic
weight 6 oz

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