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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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  1. 200378 Axeon HF1-4021 Reverse Osmosis Membrane

    200378 Axeon HF1-4021 Reverse Osmosis Membrane

    Sized 21 inches (length) x 3.95 inches (outside diameter) Learn More
    $172.99 Retail Price:  $223.99
  2. BW60-1812-75 Filmtec Reverse Osmosis Membrane

    BW60-1812-75 Filmtec Reverse Osmosis Membrane

    Fits reverse osmosis systems from various brands Learn More
    $44.99 Retail Price:  $47.34
  3. 200362 Axeon TF-1812-150 Residential Reverse Osmosis Membrane

    200362 Axeon TF-1812-150 Residential Reverse Osmosis Membrane

    Fits standard size 12 x 2 inch RO membrane housings Learn More
    $43.99 Retail Price:  $59.99
  4. 208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2521 membranes and other systems that use 21 x 2.5 inch membranes Learn More
    $119.99 Retail Price:  $143.99
  5. 208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2540 membranes and other systems that use 40 x 2.5 inch membranes Learn More
    $199.99 Retail Price:  $259.99
  6. 208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    Fits Axeon RO systems using size 2514 membranes and other systems that use 14 x 2.5 inch membranes Learn More
    $109.99 Retail Price:  $130.99
  7. Axeon TF-3012-500 Reverse Osmosis Membrane

    Axeon TF-3012-500 Reverse Osmosis Membrane

    Fits standard size 12 x 3 inch RO membrane housings Learn More
    $114.99 Retail Price:  $150.99
  8. TW30HP-2526 Filmtec Reverse Osmosis Membrane

    TW30HP-2526 Filmtec Reverse Osmosis Membrane

    Fits reverse osmosis membrane housings that require 2.5 x 26-inch membranes Learn More
    $225.99 Retail Price:  $279.99
  9. 3M Aqua-Pure RM-TFC Reverse Osmosis Membrane

    RM-TFC 3M Aqua-Pure Reverse Osmosis Membrane

    Fits the 3M Aqua-Pure RO5500 reverse osmosis water filter system Learn More

    Regular Price: $178.99

    Special Price: $137.05

  10. Axeon 200359 Reverse Osmosis Membrane

    Axeon 200359 Reverse Osmosis Membrane

    Standard size 1.75 inch diameter by 11.75 inch length, fits any common RO membrane housings Learn More
    $34.99 Retail Price:  $36.79
  11. Axeon 200361 Reverse Osmosis Membrane

    Axeon 200361 Reverse Osmosis Membrane

    Standard size 1.75 inch diameter by 11.75 inch length, fits any common RO membrane housings Learn More
    $39.99 Retail Price:  $48.29
  12. Axeon 200387 Reverse Osmosis Membrane

    Axeon 200387 Reverse Osmosis Membrane

    Standard 2.5 inch by 21 inch size fits many common membrane housings Learn More
    $98.99 Retail Price:  $128.79
  13. WROM-230T American Plumber Reverse Osmosis Replacement Membrane

    WROM-230T American Plumber Reverse Osmosis Replacement Membrane

    Fits American Plumber WRO-3000 Reverse Osmosis System Learn More
    $90.99 Retail Price:  $112.69
  14. WROM-230TN American Plumber Reverse Osmosis Replacement Membrane

    WROM-230TN American Plumber Reverse Osmosis Replacement Membrane

    Fits American Plumber WRO-3500 Reverse Osmosis System Learn More
    $89.99 Retail Price:  $104.65
  15. 3M Aqua-Pure AP5500RM Reverse Osmosis Membrane

    AP5500RM 3M Aqua-Pure Reverse Osmosis Membrane

    Fits the 3M Aqua-Pure RO5500 reverse osmosis water filter system Learn More
    $107.99 Retail Price:  $158.69
  16. AG2521TF Desal Commercial Reverse Osmosis Membrane

    AG2521TF Desal Commercial Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 2.5-inch x 21-inch membranes Learn More
    $129.99 Retail Price:  $151.79
  17. AG2540TF Desal Reverse Osmosis Membrane

    AG2540TF Desal Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 2.5-inch x 40-inch membranes Learn More
    $219.99 Retail Price:  $226.54
  18. AG4021TF Desal Commercial Reverse Osmosis Membrane

    AG4021TF Desal Commercial Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 4-inch x 21-inch membranes Learn More
    $232.99 Retail Price:  $270.24
  19. AG4040FF Desal Commercial Reverse Osmosis Membrane

    AG4040FF Desal Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 4-inch x 40-inch membranes Learn More
    $319.99 Retail Price:  $370.29
  20. AK4040FF Desal Commercial Reverse Osmosis Membrane

    AK4040FF Desal Commercial Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels that accept 4-inch x 40-inch membranes Learn More
    $329.99 Retail Price:  $381.79
  21. PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels and many commercial reverse osmosis systems that accept a 4-inch x 40-inch membrane Learn More
    $999.99 Retail Price:  $1152.29
  22. RO-4040 Desal Duraslick Reverse Osmosis Membrane

    RO-4040 Desal Duraslick Reverse Osmosis Membrane

    Fits GE Osmonics pressure vessels and many commercial reverse osmosis systems that accept a 4-inch x 40-inch membrane Learn More
    $449.99 Retail Price:  $519.79
  23. TFM-100 Desal Reverse Osmosis Membrane

    TFM-100 Desal Reverse Osmosis Membrane

    Fits several brands of 100 gallon per day reverse osmosis systems, including the PuROLine 5000 Learn More
    $29.99 Retail Price:  $32.19
  24. TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    TFM-100EN Desal Encapsulated Reverse Osmosis Membrane

    Fits commercial reverse osmosis systems that accept 100 gallon per day encapsulated membranes Learn More
    $57.99 Retail Price:  $68.99
  25. TFM-18 Desal Reverse Osmosis Membrane

    TFM-18 Desal Reverse Osmosis Membrane

    Fits 18 gallon per day reverse osmosis systems from various brands Learn More
    $33.99 Retail Price:  $39.09

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