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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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21 Item(s)

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  • TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    $35.99
    MSRP: $45.99
    Save 22%
  • TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    $36.99
    MSRP: $49.99
    Save 26%
  • TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    $45.99
    MSRP: $55.19
    Save 17%
  • HDG-CB-AC10 Hydronix Comparable PRE-RO Carbon Block Reverse Osmosis Filter by Tier1
  • TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    $35.99 MSRP: $45.99
    Save 22%
  • ROM-100 Campbell Comparable Reverse Osmosis Membrane by Tier1
  • RF-63 Honeywell Comparable Reverse Osmosis Membrane by Tier1
  • TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TW30-1812-36 Filmtec Comparable Reverse Osmosis Membrane by Tier1
  • MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TLC-36 Pentair Comparable Reverse Osmosis Membrane by Tier1
  • W-1812-36 Watts Comparable Reverse Osmosis Membrane by Tier1
  • TFM-50 Comparable Reverse Osmosis Membrane by Tier1

    TFM-50 Comparable Reverse Osmosis Membrane by Tier1

    $45.99 MSRP: $55.19
    Save 17%
  • TW30-1812-50 Watts Comparable Reverse Osmosis Membrane by Tier1
  • TW30-1812-50 Filmtec Comparable Reverse Osmosis Membrane by Tier1
  • TF-1812-50 Axeon Comparable Reverse Osmosis Membrane by Tier1
  • ROM-230TN Pentek Reverse Osmosis Membrane

    ROM-230TN Pentek Reverse Osmosis Membrane

    $80.39
    MSRP: $118.99
    Save 32%
  • WDF-103SS Tier1 Long-Reach Stainless Steel Faucet

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