Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

Clear All
Compare

14 Item(s)

Grid  List 

Set Descending Direction
  1. 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
  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. FX12P GE SmartWater Comparable Reverse Osmosis Filter Set by Tier1

    FX12P GE SmartWater Comparable Reverse Osmosis Filter Set by Tier1

    Fits GE SmartWater reverse osmosis filter systems with model numbers starting with PNRV12, GXRV10, or GXRM10 Learn More

    As Low As $11.99 Per Filter

  11. ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $11.99 MSRP:  $13.79
  12. ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $8.09 MSRP:  $14.99
  13. WS03X10016 GE Water Filtration System Flow Control

    WS03X10016 GE Water Filtration System Flow Control

    Fits into the following GE filtration system housings: GXRV10ABL, PNRV12ZBL01, PNRV12ZWH01, PNRV18ZBB01, PNRV18ZBL01, PNRV18ZCC, PNRV18ZWH01 and PNRV18ZWW01 Learn More
    $5.99 MSRP:  $13.99
  14. FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Replacement Filter Set By Tier1

    FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Replacement Filter Set By Tier1

    Fits GE Profile SmartWater Ultra Plus reverse osmosis filter systems Learn More
    $38.99 MSRP:  $109.99

14 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top