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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. AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    3M Aqua-Pure AP117RO Reverse Osmosis Filter

    For use in 3M Aqua-Pure reverse osmosis water filtration systems Learn More
    $25.39 MSRP:  $38.99
  2. 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
  3. 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
  4. TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
  5. RS-23-SED5 Culligan Comparable Pre-Reverse Osmosis Sediment Filter by Tier1

    RS-23-SED5 Culligan Comparable Pre-Reverse Osmosis Sediment Filter by Tier1

    Fits Culligan Aqua Cleer and H Series reverse osmosis systems, including the H-5, H-8, H-82, H-83, AC-15, AC-30 and AC-50 Learn More
    $7.99
  6. Tier1 TROM-100 RO Membrane
  7. Tier1 TROM-24 RO Membrane
  8. TROM-50 Reverse Osmosis Membrane by Tier1 (50 GPD)

    TROM-50 Reverse Osmosis Membrane by Tier1 (50 GPD)

    Fits most residential RO systems with 50 gallons per day of flow rate Learn More
    $30.99 MSRP:  $50.99
  9. Tier1 TROM-75 RO Membrane
  10. Culligan Pre-Reverse Osmosis Carbon Block Comparable Filter by Tier1

    Culligan Pre-Reverse Osmosis Carbon Block Comparable Filter by Tier1

    Fits Culligan Aqua Cleer and H Series reverse osmosis systems, including the H-5, H-8, H-82, H-83, AC-15, AC-30 and AC-50 Learn More
    $10.99 MSRP:  $20.99
  11. 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
  12. 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
  13. HDG-CB-AC10 Hydronix Comparable PRE-RO Carbon Block Reverse Osmosis Filter by Tier1
  14. TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    Fits select Culligan and various other brands of reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  15. ROM-100 Campbell Comparable Reverse Osmosis Membrane by Tier1

    ROM-100 Campbell Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan and various other brands of reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  16. RF-63 Honeywell Comparable Reverse Osmosis Membrane by Tier1

    RF-63 Honeywell Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan and various other brands of reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  17. TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  18. FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  19. TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  20. TW30-1812-36 Filmtec Comparable Reverse Osmosis Membrane by Tier1

    TW30-1812-36 Filmtec Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  21. MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  22. AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  23. TLC-36 Pentair Comparable Reverse Osmosis Membrane by Tier1

    TLC-36 Pentair Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  24. W-1812-36 Watts Comparable Reverse Osmosis Membrane by Tier1

    W-1812-36 Watts Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

    As Low As $0.00 Per Filter

  25. TW30-1812-50 Watts Comparable Reverse Osmosis Membrane by Tier1

    TW30-1812-50 Watts Comparable Reverse Osmosis Membrane by Tier1

    Fits select Culligan reverse osmosis systems Learn More

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