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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. S7028 Microline Replacement Filter Cartridge

    S7028 Microline Replacement Filter Cartridge

    Fits Microline Clack reverse osmosis systems Learn More
    $17.99 Retail Price:  $20.69
  2. WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    Fits Watts Kwik-Change Drinking Water & Reverse Osmosis Water Filtration Systems Learn More
    $11.99 Retail Price:  $16.09
  3. 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    Fits the GE Merlin Reverse Osmosis System Learn More
    $26.99 Retail Price:  $28.74
  4. 41400008 Hydrotech Reverse Osmosis Filter

    41400008 Hydrotech Reverse Osmosis Filter

    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
    $6.99 Retail Price:  $10.91
  5. 4VTFC75G-PB Hydrotech Pushbutton Reverse Osmosis Filter System
  6. 41400076 Hydrotech Dual Purpose Water Filter41400076 Hydrotech Dual Purpose Water Filter

    41400076 Hydrotech Dual Purpose Water Filter

    Fits Hydrotech HT and HTF Series Reverse Osmosis Water Filtration Systems Learn More
    $17.99 Retail Price:  $19.54
  7. CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System
  8. 47-55704G2 Water Factory Systems Replacement Filter Cartridge

    47-55704G2 Water Factory Systems Replacement Filter Cartridge

    Fits 3M Cuno Water Factory SQC reverse osmosis systems Learn More
    $25.99 Retail Price:  $33.34
  9. 5EZ-50 Valueline Reverse Osmosis Filter System
  10. RC540T50-T Tier1 Countertop Reverse Osmosis Filter System
  11. 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
  12. 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
  13. FPMB5-20 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-20 Watts Flo-Pro Water Filter Cartridge

    Fits water filtration system housing that accept a 20-inch x 2 1/2-inch filter Learn More
    $5.99 Retail Price:  $6.89
  14. SQC-3 Water Factory Systems Reverse Osmosis Filter System
  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. PT3000T50-SS-AD PuROTwist PuROTwist Reverse Osmosis Filter System

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