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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. RO5 Tier1 5-Stage Reverse Osmosis System

    RO5 Tier1 5-Stage Reverse Osmosis System

    $195.99 Retail Price:  $249.99
  2. RO-1070-W14 Reverse Osmosis Bladder Tank - 14 Gallon
  3. TPG-100 Tier1 Reverse Osmosis Tank Pressure Gauge
  4. TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
    $45.99 Retail Price:  $55.19
  5. TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    Fits select Culligan reverse osmosis systems Learn More
    $36.99 Retail Price:  $50.59
  6. 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 Retail Price:  $45.99
  7. RC540T50-T Tier1 Countertop Reverse Osmosis Filter System
  8. 6570590 Tier1 Plastic Tank Ball Valve

    6570590 Tier1 Plastic Tank Ball Valve

    Fits 3/8-inch connection on water line and 1/4-inch connection on top of reverse osmosis tank Learn More
    $6.99 Retail Price:  $10.34
  9. 6570090 Tier1 Plastic Tank Ball Valve

    6570090 Tier1 Plastic Tank Ball Valve

    Fits 1/4-inch connections on water line and top of reverse osmosis tank Learn More
    $10.99
  10. 54846 Tier1 Reverse Osmosis Tank Pressure Gauge

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