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Reverse Osmosis Water Filter Replacement Cartridges and Kits

Reverse Osmosis: a water purification technology that utilizes a semi-permeable membrane to remove microscopic particles (typically anything larger than 0.001 microns in size) from drinking water.

Select what type of reverse osmosis filter part you’re searching for (system, filter, etc.) and browse or search through hundreds of our reverse osmosis water filters, systems, membranes, and other water filter parts. Choose from some of the industry’s top reverse osmosis brands including, Watts®, Hydrologic, Hydrotech, and Water Factory Systems.

Not sure if investing in a reverse osmosis water filter is what you want, then check out our thousands of other popular water filters, including whole house, under sink, faucet filters, and many more.

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  1. WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System

    WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System

    Fits and installs easily beneath standard sized sinks Learn More
  2. 66-1311 Water Factory Systems Reverse Osmosis Membrane

    66-1311 Water Factory Systems Reverse Osmosis Membrane

    Fits the 3M Cuno HP-300 Commercial Reverse Osmosis System Learn More
  3. 66-1315 Water Factory Systems Reverse Osmosis Membrane

    66-1315 Water Factory Systems Reverse Osmosis Membrane

    Fits the 3M Cuno HP-900 Commercial Reverse Osmosis System Learn More
  4. 66-4311 Water Factory Systems Reverse Osmosis Membrane

    66-4311 Water Factory Systems Reverse Osmosis Membrane

    Fits the 3M Cuno LP-80 Commercial Reverse Osmosis System Learn More
  5. 3MROM413-20A Water Factory Systems TFC Reverse Osmosis Membrane

    3MROM413-20A Water Factory Systems TFC Reverse Osmosis Membrane

    Fits 3M Cuno Water Factory SQC reverse osmosis systems Learn More
    $129.49 MSRP:  $167.99
  6. 66-4709G2 Water Factory Systems Reverse Osmosis Membrane

    66-8709G2 Water Factory Systems Reverse Osmosis Membrane

    Fits 3M Cuno Water Factory SQC PRO C-80 reverse osmosis systems only Learn More
  7. SQC-3 Water Factory Systems Reverse Osmosis Filter System
  8. SQC-4 Water Factory Systems Reverse Osmosis Filter System
  9. 31040 Hydrologic Stealth-RO200 Reverse Osmosis Water Filtration System

    31040 Hydrologic Stealth-RO300 Reverse Osmosis Water Filtration System

    Comes complete with easy installation kit Learn More
    $227.09 MSRP:  $329.99
  10. 31035 Hydrologic Stealth-RO100 Reverse Osmosis Filtration System

    31035 Hydrologic Stealth-150 Reverse Osmosis Filtration System

    Customized for gardening and hydroponics. Everything included in the box for quick hook-up. Learn More
    $164.99 MSRP:  $225.00
  11. WROM-230T American Plumber Reverse Osmosis Replacement Membrane

    WROM-230T American Plumber Reverse Osmosis Replacement Membrane

    Fits American Plumber WRO-3000 Reverse Osmosis System Learn More
  12. WROM-230TN American Plumber Reverse Osmosis Replacement Membrane

    WROM-230TN American Plumber Reverse Osmosis Replacement Membrane

    Fits American Plumber WRO-3500 Reverse Osmosis System Learn More
    $89.99 MSRP:  $104.65
  13. AG2540TF Desal Reverse Osmosis Membrane

    AG2540TF Desal Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 2.5-inch x 40-inch membranes Learn More
    $219.99 MSRP:  $226.54
  14. TLC-150EB Desal Encapsulated Reverse Osmosis Membrane

    TLC-150EB Desal Encapsulated Reverse Osmosis Membrane

    Fits commercial reverse osmosis systems that accept 150 gallon per day encapsulated membranes Learn More
  15. NF90-400 Filmtec Nanofiltration Element
  16. ROM-16C Pentek Reverse Osmosis Replacement Membrane

    ROM-16C Pentek Reverse Osmosis Replacement Membrane

    Fits US Filter RO-2127 Learn More
    $52.79 MSRP:  $76.99
  17. ROM-230TN Pentek Reverse Osmosis Membrane

    ROM-230TN Pentek Reverse Osmosis Membrane

    Fits select Pentek, Culligan, Ametek, American Plumber, USFilter and other brands of reverse osmosis systems Learn More
    $80.39 MSRP:  $118.99
  18. ROM-26T Pentek Reverse Osmosis Membrane

    ROM-26T Pentek Reverse Osmosis Membrane

    Fits select Pentek, Culligan, Ametek, American Plumber, USFilter and other brands of reverse osmosis systems Learn More
    $73.99 MSRP:  $84.05
  19. TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    Fits the third stage of the PuROTwist 3000 and 4000 reverse osmosis systems Learn More
    $80.39 MSRP:  $104.99
  20. TQ56-50FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-50FC PuROTwist Reverse Osmosis Membrane

    Fits the third stage of the PuROTwist 3000 and 4000 reverse osmosis systems Learn More
    $77.09 MSRP:  $113.99
  21. W-1812-24 Watts Replacement Reverse Osmosis Membrane
  22. W-1812-36 Watts Replacement Reverse Osmosis Membrane
  23. WQCM11-50 Watts Kwik-Change Replacement Reverse Osmosis Membrane - Green

    WQCM11-50 Watts Kwik-Change Reverse Osmosis Membrane (Green)

    For use in Watts Kwik Change reverse osmosis systems Learn More
    $57.99 MSRP:  $68.99
  24. 33001033 Hydrotech TFC Reverse Osmosis Membrane

    33001033 Hydrotech TFC Reverse Osmosis Membrane

    Fits Hydrotech Models from the 1240 Series, 1240 E Series,1240 M Series, 1240 Pro Series, 3VTFC50G, 4VTFC50G, 4VTFC50GPB, F-HT-50, F-HTF-50 and other select models Learn More
    $64.99 MSRP:  $82.79
  25. 33001056 Hydrotech TFC Reverse Osmosis Membrane

    33001056 Hydrotech TFC Reverse Osmosis Membrane

    Fits Hydrotech Models from the 1240 Series, 1240 E Series,1240 M Series, 1240 Pro Series, 3VTFC50G, 4VTFC50G, 4VTFC50GPB, F-HT-50, F-HTF-50 and other select models Learn More
    $85.59 MSRP:  $127.99

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