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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.

Items 1 to 48 of 133 total

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  • 200520 Axeon 2540 PVC Membrane Housing

    200520 Axeon 2540 PVC Membrane Housing

    $98.99 Retail Price:  $122.99
  • 4002574/GRO-50EN Pentair GPD Encapsulated Membrane

    4002574/GRO-50EN Pentair GPD Encapsulated Membrane

    $74.99 Retail Price:  $90.54
  • 4002573/GRO-36EN Pentair GPD Encapsulated Membrane

    4002573/GRO-36EN Pentair GPD Encapsulated Membrane

    $74.99 Retail Price:  $90.54
  • RO-Sani-System-1PK Pro Products Reverse Osmosis System Sanitizer
  • Axeon 200361 Reverse Osmosis Membrane

    Axeon 200361 Reverse Osmosis Membrane

    $39.99 Retail Price:  $48.29
  • ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    $11.99 Retail Price:  $13.79
  • ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    $7.99 Retail Price:  $11.49
  • Axeon 200387 Reverse Osmosis Membrane

    Axeon 200387 Reverse Osmosis Membrane

    $98.99 Retail Price:  $128.79
  • Axeon 200359 Reverse Osmosis Membrane

    Axeon 200359 Reverse Osmosis Membrane

    $34.99 Retail Price:  $36.79
  • S1227RS Microline TFC Reverse Osmosis Membrane

    S1227RS Microline TFC Reverse Osmosis Membrane

    $45.99 Retail Price:  $71.29
  • S1224RS Microline CTA Reverse Osmosis Membrane

    S1224RS Microline CTA Reverse Osmosis Membrane

    $59.99 Retail Price:  $68.99
  • S1229RS Microline TFC Reverse Osmosis Membrane

    S1229RS Microline TFC Reverse Osmosis Membrane

    $59.99 Retail Price:  $71.29
  • WQCHFC11 Watts Kwik-Change Hollow Fiber (UF) Water Filter Cartridge
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99 Retail Price:  $16.09
  • TFM-18-EB Desal Reverse Osmosis Membrane

    TFM-18-EB Desal Reverse Osmosis Membrane

    $59.99 Retail Price:  $71.29
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    $52.99 Retail Price:  $79.34
  • WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    $26.99 Retail Price:  $33.34
  • 22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000
  • WHEERM Whirlpool UltraEase Reverse Osmosis Membrane
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $26.99 Retail Price:  $28.74
  • 1268260 Merlin Reverse Osmosis Flush Kit

    1268260 Merlin Reverse Osmosis Flush Kit

    $55.99 Retail Price:  $66.69
  • 41400004 Hydrotech TFC Reverse Osmosis Membrane

    41400004 Hydrotech TFC Reverse Osmosis Membrane

    $63.99 Retail Price:  $74.74
  • 41400002 Hydrotech CTA Reverse Osmosis Membrane

    41400002 Hydrotech CTA Reverse Osmosis Membrane

    $54.99 Retail Price:  $67.84
  • 41400001 Hydrotech CTA Reverse Osmosis Membrane

    41400001 Hydrotech CTA Reverse Osmosis Membrane

    $59.99 Retail Price:  $68.99
  • 33001071 Hydrotech TFC Reverse Osmosis Membrane

    33001071 Hydrotech TFC Reverse Osmosis Membrane

    $44.99 Retail Price:  $56.34
  • 33001068 Hydrotech TFC Reverse Osmosis Membrane

    33001068 Hydrotech TFC Reverse Osmosis Membrane

    $54.99 Retail Price:  $65.54
  • 33001056 Hydrotech TFC Reverse Osmosis Membrane

    33001056 Hydrotech TFC Reverse Osmosis Membrane

    $80.99 Retail Price:  $86.24
  • 33001033 Hydrotech TFC Reverse Osmosis Membrane

    33001033 Hydrotech TFC Reverse Osmosis Membrane

    $64.99 Retail Price:  $82.79
  • 20500129 Hydrotech Aquafier Filter Housing Sump

    20500129 Hydrotech Aquafier Filter Housing Sump

    $18.99 Retail Price:  $24.14
  • 41400006 Hydrotech TFC Reverse Osmosis Membrane

    41400006 Hydrotech TFC Reverse Osmosis Membrane

    $59.99 Retail Price:  $71.29
  • 41400007 Hydrotech TFC Reverse Osmosis Membrane

    41400007 Hydrotech TFC Reverse Osmosis Membrane

    $69.99 Retail Price:  $82.79
  • 41400008 Hydrotech Reverse Osmosis Filter

    41400008 Hydrotech Reverse Osmosis Filter

    $6.99 Retail Price:  $10.91
  • 1266690 Merlin Merlin Reverse Osmosis Sediment Filter

    1266690 Merlin Merlin Reverse Osmosis Sediment Filter

    $16.99 Retail Price:  $19.34

Items 1 to 48 of 133 total

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