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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.

37 Item(s)

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  • 3M Aqua-Pure AP5500RM Reverse Osmosis Membrane

    AP5500RM 3M Aqua-Pure Reverse Osmosis Membrane

    $107.99
    MSRP: $200.00
    Save 46%
  • 3M Aqua-Pure RO3RC Reverse Osmosis Pre and Post Filter Set
  • CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System
  • AG2521TF Desal Commercial Reverse Osmosis Membrane

    AG2521TF Desal Commercial Reverse Osmosis Membrane

    $139.09
    MSRP: $203.99
    Save 32%
  • TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    $160.49
    MSRP: $239.99
    Save 33%
  • TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    $190.49
    MSRP: $277.99
    Save 31%
  • XLE-2521 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • 5EZ-50 Valueline Reverse Osmosis Filter System

    5EZ-50 Valueline Reverse Osmosis Filter System

    $179.99
    MSRP: $186.29
    Save 3%
  • 66-4506G2 Water Factory Systems Countertop Reverse Osmosis Membrane
  • 66-4706G2 Water Factory Systems TFC Reverse Osmosis Membrane

    66-8706G2 Water Factory Systems TFC Reverse Osmosis Membrane

    $130.49
    MSRP: $167.99
    Save 22%
  • 66-4709G2 Water Factory Systems Reverse Osmosis Membrane

    66-8709G2 Water Factory Systems Reverse Osmosis Membrane

    $190.49
    MSRP: $251.99
    Save 24%
  • 1244617 Merlin Reverse Osmosis System Manifold
  • 22045 Hydrologic Evolution Reverse Osmosis Membrane

    22045 Hydrologic Evolution Reverse Osmosis Membrane

    $153.99
    MSRP: $179.39
    Save 14%
  • 200375 Axeon Reverse Osmosis Membrane

    200375 Axeon Reverse Osmosis Membrane

    $109.09
    MSRP: $176.99
    Save 38%
  • WHER25 Whirlpool Reverse Osmosis Undersink Water Filtration System
  • AG2514TF GE Desal Reverse Osmosis Membrane

    AG2514TF GE Desal Reverse Osmosis Membrane

    $117.99
    MSRP: $137.99
    Save 14%
  • 31035 Hydrologic Stealth-RO100 Reverse Osmosis Filtration System
  • 20035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    22035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    $137.99
    MSRP: $178.99
    Save 23%
  • RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon

    RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon

    $136.99
    MSRP: $159.84
    Save 14%
  • 200388 Axeon HF4-2540 Extra Low Energy Reverse Osmosis Membrane
  • 200370 Axeon High Rejection HR3-2540 Commercial Reverse Osmosis Membrane
  •  200392 Axeon Ultra-Low Energy HF5-4014 Commercial Reverse Osmosis Membrane
  • 200524 Axeon 4021 PVC Membrane Housing

    200524 Axeon 4021 PVC Membrane Housing

    $154.99
    MSRP: $190.99
    Save 19%
  • 200369 Axeon HR3-2521 Commercial Reverse Osmosis Membrane

    200369 Axeon HR3-2521 Commercial Reverse Osmosis Membrane

    $102.99
    MSRP: $125.99
    Save 18%
  • 200390 Axeon HF4-4021 Extra Low Energy Reverse Osmosis Membrane
  • 3M Aqua-Pure RM-TFC Reverse Osmosis Membrane

    RM-TFC 3M Aqua-Pure Reverse Osmosis Membrane

    $137.05
    MSRP: $232.29
    Save 41%
  • TFM50EM 3M Aqua-Pure Reverse Osmosis Membrane

    TFM50EM 3M Aqua-Pure PURWATER Reverse Osmosis Membrane

    $120.89
    MSRP: $203.99
    Save 41%
  • RO5 Tier1 5-Stage Reverse Osmosis System

    5-Stage Reverse Osmosis System by Tier1

    $159.99
    MSRP: $249.99
    Save 36%
  • 200378 Axeon HF1-4021 Reverse Osmosis Membrane

    200378 Axeon HF1-4021 Reverse Osmosis Membrane

    $173.39
    MSRP: $238.99
    Save 27%
  • 208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    $119.99
    MSRP: $143.99
    Save 17%
  • 208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    $199.99
    MSRP: $259.99
    Save 23%
  • 208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    $109.99
    MSRP: $130.99
    Save 16%
  • Axeon TF-3012-500 Reverse Osmosis Membrane

    Axeon TF-3012-500 Reverse Osmosis Membrane

    $122.99
    MSRP: $161.99
    Save 24%
  • DuPont WFRO60X Quick Twist Reverse Osmosis System
  • 200521 Axeon 4014 PVC Membrane Housing

    200521 Axeon 4014 PVC Membrane Housing

    $139.99
    MSRP: $173.99
    Save 20%
  • TW30HP-2526 Filmtec Reverse Osmosis Membrane
  • Everpure EV9000-91 Antique Brass Drinking Faucet Head

    Everpure EV9000-91 Antique Brass Drinking Faucet Head

    $127.49
    MSRP: $153.99
    Save 17%

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