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Reverse Osmosis Filters & Systems

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. RO5 Tier1 5-Stage Reverse Osmosis System
  2. 200378 Axeon HF1-4021 Reverse Osmosis Membrane

    200378 Axeon HF1-4021 Reverse Osmosis Membrane

    Sized 21 inches (length) x 3.95 inches (outside diameter) Learn More
    $173.39 MSRP:  $238.99
  3. 208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2521 membranes and other systems that use 21 x 2.5 inch membranes Learn More
    $119.99 MSRP:  $143.99
  4. 208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2540 membranes and other systems that use 40 x 2.5 inch membranes Learn More
    $199.99 MSRP:  $259.99
  5. 208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2514 membranes and other systems that use 14 x 2.5 inch membranes Learn More
    $109.99 MSRP:  $130.99
  6. Axeon TF-3012-500 Reverse Osmosis Membrane

    Axeon TF-3012-500 Reverse Osmosis Membrane

    Fits standard size 12 x 3 inch RO membrane housings Learn More
    $122.99 MSRP:  $161.99
  7. DuPont WFRO60X Quick Twist Reverse Osmosis System
  8. 200520 Axeon 2540 PVC Membrane Housing

    200520 Axeon 2540 PVC Membrane Housing

    Fits 2540 size Axeon membranes Learn More
    $98.99 MSRP:  $122.99
  9. 200521 Axeon 4014 PVC Membrane Housing

    200521 Axeon 4014 PVC Membrane Housing

    Fits 4014 size Axeon membranes Learn More
    $139.99 MSRP:  $173.99
  10. TW30HP-2526 Filmtec Reverse Osmosis Membrane

    TW30HP-2526 Filmtec Reverse Osmosis Membrane

    Fits reverse osmosis membrane housings that require 2.5 x 26-inch membranes Learn More
  11. Everpure EV9000-91 Antique Brass Drinking Faucet Head

    Everpure EV9000-91 Antique Brass Drinking Faucet Head

    Fits most standard kitchen sinks Learn More
    $127.49 MSRP:  $153.99
  12. Brondell H2O+ Circle Reverse Osmosis Water Filtration System

    Brondell H2O+ Circle Reverse Osmosis Water Filtration System

    Undersink RO system. 10 times more efficient than conventional RO systems. Learn More
    $395.89 MSRP:  $542.99
  13. Brondell RF-40 H2O+ Circle Replacement Membrane Filter

    Brondell RF-40 H2O+ Circle Replacement Membrane Filter

    Stage 3 RO membrane filter replacement for the Brondell H2O+ Circle Reverse Osmosis Filtration System Learn More
    $96.29 MSRP:  $115.99
  14. 3M Aqua-Pure RM-TFC Reverse Osmosis Membrane

    RM-TFC 3M Aqua-Pure Reverse Osmosis Membrane

    Fits the 3M Aqua-Pure RO5500 reverse osmosis water filter system Learn More

    Regular Price: $178.99

    Special Price: $137.05

  15. TFM50EM 3M Aqua-Pure Reverse Osmosis Membrane

    TFM50EM 3M Aqua-Pure PURWATER Reverse Osmosis Membrane

    For use with the 3M Aqua-Pure PW-RO2, PW-RO4L and PW 206 reverse osmosis filtration systems Learn More
    $120.89 MSRP:  $203.99
  16. Axeon 200387 Reverse Osmosis Membrane

    Axeon 200387 Reverse Osmosis Membrane

    Standard 2.5 inch by 21 inch size fits many common membrane housings Learn More
    $98.99 MSRP:  $128.79
  17. 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
    $97.39 MSRP:  $118.99
  18. 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
  19. WROM-25T American Plumber Reverse Osmosis Membrane

    WROM-25T American Plumber Reverse Osmosis Membrane

    Fits the American Plumber WRO-4500 Learn More
    $96.99 MSRP:  $113.84
  20. 3M Aqua-Pure AP5500RM Reverse Osmosis Membrane

    AP5500RM 3M Aqua-Pure Reverse Osmosis Membrane

    Fits the 3M Aqua-Pure RO5500 reverse osmosis water filter system Learn More
    $107.99 MSRP:  $200.00
  21. 3M Aqua-Pure AP5527 Reverse Osmosis Filter

    AP5527 3M Aqua-Pure Reverse Osmosis Pre and Post Filter Set

    Fits 3M Aqua-Pure RO5000 and RO5500 reverse osmosis water filter systems Learn More
    $78.99 MSRP:  $82.50
  22. 3M Aqua-Pure RO3RC Reverse Osmosis Pre and Post Filter Set

    RO3RC 3M Aqua-Pure Reverse Osmosis Pre and Post Filter Set

    Fits the 3M Aqua-Pure APRO3 reverse osmosis water filter system Learn More
  23. CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System
  24. CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System
  25. CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System

    CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System

    Fits any standard faucet Learn More
    $171.19 MSRP:  $219.99

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