1/4″ O.D. x 1/8″ NPTF Check Valve Elbow


  • 1/8″ Male NPTF thread
  • 1/4″ quick connect fitting
  • Fits OROS-50 & OROS-80
  • Prevents backflow of water into the RO membrane

In stock

White polypropylene 1/4″ O.D. quick connect x 1/8″ male NPTF thread. Check Valve prevents backflow of water into the reverse osmosis membrane. Suitable for water and food applications. Used on OROS-50 and OROS-80 to connect RO membrane housing to automatic shut off valve.

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Olympia Water System products have a 30 day money-back guarantee from the date of purchase. All return shipping fees are the customer’s responsibility unless the return is due to manufacturer error or defect. For details on our Return Policy and Product Warranty please visit our Terms & Conditions and Warranty pages.


In-stock items will be shipped within 2-3 business days after your order has been placed. We currently only ship to addresses within in the United States (48 continental states, Alaska & Hawaii).