1/4″ Tubing (per foot)


  • Polyethylene Tubing for Reverse Osmosis Systems
  • NSF Certified – NSF/ANSI 42, 58 & 61
  • 1/4″ O.D. x 0.142″ I.D.
  • Food Grade Tubing

1/4″ NSF Certified reverse osmosis system tubing is available in 4 different colors (white, yellow, black and blue). For OROS-50 and OROS-80 systems, the tubing is color coordinated with the quick connect fitting caps. White to the water supply, Yellow to the tank, Black to the drain and Blue to the faucet. NOTE: Tubing pricing is per foot. Please enter the quantity you need in feet (example: QTY 12 = 12 feet of tubing).

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30 Day Money-Back Guarantee

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).