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Reverse Osmosis Filters & Systems

Reverse Osmosis: a water purification technology that utilizes a semi-permeable membrane to remove larger 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. DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane

    Fits the Dupont WFRO60X Reverse Osmosis System Learn More
    $53.99 Retail Price:  $56.34
  2. 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 Retail Price:  $17.99
  3. CB-25-1010 Hydronix Carbon Water Filter Replacement

    CB-25-1010 Hydronix Carbon Water Filter Replacement

    9 7/8 inches by 2.75 inches, 10 micron, fits systems that use Liquatec CB-250-975-10 and Watts IF-CB-010 / IFCB010M water filters Learn More
    $6.99 Retail Price:  $10.34
  4. CB-25-1001 Hydronix Carbon Water Filter

    CB-25-1001 Hydronix Carbon Water Filter

    Sized 9-7/8 x 2.75 inches, 1 micron. Fits water filtration systems that use Liquatec CB-250-975-01, Pentek CB1-10 and Pentek 255382-43 filters Learn More
    $9.99 Retail Price:  $13.79
  5. 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
    $13.99 Retail Price:  $17.24
  6. AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    For use in 3M Aqua-Pure reverse osmosis water filtration systems Learn More
    $23.99 Retail Price:  $30.23
  7. 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 Retail Price:  $51.74
  8. 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 Retail Price:  $104.65
  9. 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
    $90.99 Retail Price:  $112.69
  10. MAXVOC-975 Watts C-MAX Replacement Filter Cartridge

    MAXVOC-975 Watts C-MAX Water Filter Cartridge

    Fits standard 10-inch x 2.5-inch water filtration system housings Learn More
    $18.99 Retail Price:  $22.99
  11. MAXPB-975 Watts C-MAX Replacement Filter Cartridge

    MAXPB-975 Watts C-MAX Water Filter Cartridge

    Fits water filtration system housings that use a 9 3/4-inch x 2 7/8-inch filter Learn More
    $17.99 Retail Price:  $20.69
  12. MAXETW-975 Watts C-MAX Replacement Filter Cartridge

    MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    Fits water filtration system housings requiring a 9 3/4-inch x 2 7/8-inch filter Learn More
    $11.99 Retail Price:  $13.79
  13. FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-978 Watts Flo-Pro Water Filter Cartridge

    Fits water filtration system housings that accepts a 9 7/8-inch x 2 1/2-inch filter Learn More
    $4.99 Retail Price:  $5.16
  14. FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    Fits most standard water filtration system housings that use a 9 7/8-inch x 2 1/2-inch filter Learn More
    $3.99 Retail Price:  $5.16
  15. CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $9.99
  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 Retail Price:  $15.51
  17. FX12P GE SmartWater Reverse Osmosis Filter Set

    FX12P GE SmartWater Reverse Osmosis Filter Set

    Fits GE SmartWater reverse osmosis filter systems with model numbers starting with "PNRV12", "GXRV10", or "GXRM10" Learn More
    $58.99 Retail Price:  $71.29

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