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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. 22140 Hydrologic TallBoy Sediment Filter

    22140 Hydrologic TallBoy Sediment Filter

    Fits the HydroLogic TallBoy Filter housing and other filtration system housings that use 20 inch by 2.5 inch replacement filters Learn More
    $9.99 MSRP:  $13.79
  2. 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  3. 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    Built with a two-stage filtration and protected by a one year limited warranty Learn More
    $153.99 MSRP:  $183.95
  4. FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  5. TIER1-DGD1-20BB Whole House Sediment Water Filter

    DGD-2501-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 20 x 5-inch housings Learn More
    $20.99 MSRP:  $24.34
  6. AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    Fits standard 10 x 2.5 inch residential and industrial housings Learn More
    $16.99 MSRP:  $22.99
  7. P5-10 Tier1 Sediment Water Filter (4-pack)

    P5-10 Tier1 Sediment Water Filter (4-pack)

    Fits into most industry standard 10-inch water filtration system housings Learn More

    $17.99

  8. DGD-2501-20 Pentek Whole House Replacement Sediment Filter (6-Pack)

    DGD-2501-20 Pentek Whole House Replacement Sediment Filter Cartridge (6-Pack)

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    (Retail Price: $160.99 ) $134.99

  9. DGD-7525 Pentek Whole House Replacement Sediment Filter (12-Pack)

    DGD-7525 Pentek Whole House Replacement Sediment Filter Cartridge (12-Pack)

    Fits most housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
  10. DGD-7525-20 Pentek Whole House Replacement Sediment Filter (6-Pack)

    DGD-7525-20 Pentek Whole House Replacement Sediment Filter Cartridge (6-Pack)

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    $125.99

  11. DGD-7525 Pentek Whole House Replacement Sediment Filter (20-Pack)

    DGD-7525 Pentek Whole House Replacement Sediment Filter Cartridge (20-Pack)

    Fits most housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
  12. DGD-7525 Pentek Whole House Replacement Sediment Filter (6-Pack)

    DGD-7525 Pentek Whole House Replacement Sediment Filter Cartridge (6-Pack)

    Fits most housings that accept 10-inch x 4.5-inch water filter cartridges Learn More
  13. DGD-2501-20 Pentek Whole House Sediment Filter

    Pentek DGD-2501-20 Sediment Water Filter Cartridge Replacements

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $22.50 Per Filter

  14. DGD-7525-20 Pentek Whole House Water Filter

    DGD-7525-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $21.00 Per Filter

  15. DGD-7525 Pentek Whole House Sediment Filter

    Pentek DGD-7525 Whole House Sediment Water Filter Cartridge Replacement

    Fits most housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $12.00 Per Filter

  16. Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    Fits most housings that accept standard 10-inch x 2.5-inch water filter cartridges Learn More

    As Low As $7.80 Per Filter

  17. EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $12.00 Per Filter

  18. EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    Fits into most industry standard 10-inch water filtration system housings Learn More

    As Low As $7.50 Per Filter

  19. P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    Fits into most industry standard 10-inch water filtration system housings Learn More

    As Low As $3.00 Per Filter

  20. Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $10.80 Per Filter

  21. OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    Standard 10 inch by 2.5 inch size fits many common filter housings Learn More
    $4.99 MSRP:  $8.04
  22. W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $12.99 MSRP:  $16.34
  23. W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    Fits American Plumber W38-PR and most standard size water filter housings Learn More
    $21.99 MSRP:  $24.34
  24. W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)

    Fits American Plumber W34-PR, WC34-PR and WVC34 and most standard size water filter housings Learn More
    $12.99 MSRP:  $16.34
  25. P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)

    P1-D Culligan Whole House Water Filter Replacement Cartridge (2-Pack)

    Fits Culligan HF-150, HF-160, HF-360 HF-365, and any brand of whole house water filtration system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $11.99 MSRP:  $12.98

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