Reverse osmosis systems used with an auto shut off valve require a check valve to prevent back flow. This allows pressure to build up so the auto shut off can activate and shut the system off. Systems that continually run wa...

Buy Now From Amazon

Reverse osmosis systems used with an auto shut off valve require a check valve to prevent back flow. This allows pressure to build up so the auto shut off can activate and shut the system off. Systems that continually run water down the drain may be missing or have a bad check valve, and systems that intermittently turn on without any water use may indicate a worn check valve.

Product Highlights
1) The check valve components are made of high quality stainless steel.
2) The 1/8" threaded end connects directly to most membrane housings.
3) The 1/4" quick connect fitting fits standard 1/4" tubing used on most RO systems.
4) The 90-degree elbow angle allows for tight fits on the membrane housing.
5) Compatible with most Reverse Osmosis systems (including brand names) in the market
6) To be installed on the outlet port of membrane housing where pure water exits.


  • Compatible with most Reverse Osmosis systems (including brand names) in the market
  • Prevents the back flow of water into the RO membrane
  • 1/4" fitting
  • To be installed on the outlet port of membrane housing where pure water exits
  • Compatible with most Reverse Osmosis systems (including brand names) in the market
  • Prevents the back flow of water into the RO membrane
  • 1/4" fitting
  • To be installed on the outlet port of membrane housing where pure water exits

Similar Products

iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASViSpring® Flow Restrictor /Flow Limit 300 #AFR1Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse OsmosisiSpring MC7 1.8-Inch x 12-Inch 75GPD Reverse Osmosis MembraneiSpring F7-GAC 1-Year Replacement Filter Set for 5-stage RO Filters, Fits iSpring RCC7, RCC7P, RCC7U, RCC1P, RCC1UP, RCW5 (7pcs 2SED 2GAC 2CTO 1T33, no membrane)