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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. Triton Water Filters Replacement Color Changing Di Cartridge Hydrologic 22016

    Triton Water Filters Replacement Color Changing Di Cartridge Hydrologic 22016

    Fits standard 10 inches x 2.5 inches housings Learn More
    $36.89 MSRP:  $48.99
  2. 22155 Triton Water Replacement Membrane by Hydrologic

    22155 Triton Water Replacement Membrane by Hydrologic

    For use with Triton Reverse Osmosis Systems Learn More
    $64.39 MSRP:  $87.99
  3. 22160 Triton Replacement Sediment Filter Cartridge by Hydrologic

    22160 10-inch by 2.5-inch Triton Replacement Sediment Filter Cartridge by Hydrologic

    Fits most standard 10 inches x 2.5 inch housings Learn More
    $12.99 MSRP:  $17.99
  4. 1236268 Merlin Reverse Osmosis Pre Filter

    1236268 GE Merlin Reverse Osmosis Pre Filter

    Fits standard 40 x 2-1/2 inch filter housings Learn More
    $29.99 MSRP:  $32.34
  5. ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement

    ROR2000-S-05 OmniFilter Reverse Osmosis Pre and Post Filter Replacements

    Fits the OmniFilter RO2000 Series B Reverse Osmosis System Learn More
    $24.99
  6. WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  7. RO-Sani-System-1PK Pro Products Reverse Osmosis System Sanitizer
  8. ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $11.99 MSRP:  $13.79
  9. ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $8.09 MSRP:  $14.99
  10. 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
    $96.19 MSRP:  $118.99
  11. 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
  12. 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
  13. WROR American Plumber Reverse Osmosis Replacement Filter Kit

    WROR American Plumber Reverse Osmosis Replacement Filter Kit

    Fits American Plumber WRO-3500 and WRO-3000 Reverse Osmosis Systems Learn More
    $43.99 MSRP:  $51.74
  14. 3M Aqua-Pure AP124 Whole House Water Filter Cartridge

    AP124 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $12.99 MSRP:  $17.24
  15. 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
  16. 22125 Hydrologic Stealth-RO Replacement Sediment Filter

    22125 Hydrologic Stealth-RO Sediment Filter

    Fits the Stealth RO100/200 or filtration system housing that uses 10 inch by 2.5 inch filters Learn More
    $13.99 MSRP:  $15.51
  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. 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
  19. 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
  20. 54846 Tier1 Reverse Osmosis Tank Pressure Gauge
  21. 6570090 Tier1 Plastic Tank Ball Valve

    6570090 Tier1 Plastic Tank Ball Valve

    Fits 1/4-inch connections on water line and top of reverse osmosis tank Learn More
    $10.99
  22. 6570590 Tier1 Plastic Tank Ball Valve

    6570590 Tier1 Plastic Tank Ball Valve

    Fits 3/8-inch connection on water line and 1/4-inch connection on top of reverse osmosis tank Learn More
    $6.99 MSRP:  $10.34
  23. TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan and various other brands of reverse osmosis systems Learn More
    $35.99 MSRP:  $45.99
  24. TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
    $36.99 MSRP:  $49.99
  25. TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
    $45.99 MSRP:  $55.19

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