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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. 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

    Out of stock

  2. 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
  3. 1244617 Merlin Reverse Osmosis System Manifold

    1244617 Merlin Reverse Osmosis System Manifold

    Fits the GE Merlin reverse osmosis system Learn More
  4. 22045 Hydrologic Evolution Reverse Osmosis Membrane

    22045 Hydrologic Evolution Reverse Osmosis Membrane

    Fits the tankless Evolution RO1000 Reverse Osmosis System Learn More
    $153.99 MSRP:  $179.39
  5. AG2514TF GE Desal Reverse Osmosis Membrane

    AG2514TF GE Desal Reverse Osmosis Membrane

    2.5 x 14 inch TFC; Dry - Filmtec Style Learn More
    $117.99 MSRP:  $137.99
  6. 20035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    22035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    Fits the Hydrologic EcoSpring water purification system Learn More
    $136.19 MSRP:  $178.99
  7. RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon
  8. 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
  9. 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

    Out of stock

  10. DuPont WFRO60X Quick Twist Reverse Osmosis System
  11. RO-QC-450 4-Stage Quick Change Reverse Osmosis Water Filter System by Tier1 (50 GPD)

    RO-QC-450 4-Stage Quick Change Reverse Osmosis Water Filter System by Tier1 (50 GPD)

    Installs directly onto the cold water supply Learn More
    $179.99 MSRP:  $299.99
  12. 5EZ-50 Valueline Reverse Osmosis Filter System
  13. 66-4506G2 Water Factory Systems Countertop Reverse Osmosis Membrane

    66-4506G2 Water Factory Systems Countertop Reverse Osmosis Membrane

    Fits 3M Cuno Water Factory SQC 30T & SQC 40T reverse osmosis systems Learn More
  14. 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
  15. 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
  16. 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
  17. RO5 Tier1 5-Stage Reverse Osmosis System
  18. 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
    $169.00 MSRP:  $219.99

    Out of stock

  19. 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

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