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

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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. ZR-001-B ZeroWater 5-Stage Dual Ion Exchange Filter Replacement Cartridge
  2. DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack

    DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack

    Fits DuPont Water Filter Pitchers: DUPONT-WPT100XW, DUPONT-WFPT075X, DUPONT-WFPT200X Learn More
  3. SDC-45-2020 Hydronix Sediment Water Filter
  4. Pentek WP5BB97P Replacement Water Filter Cartridge

    WP5BB97P Pentek Replacement Filter Cartridge

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

    As Low As $18.83 Per Filter

  5. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $14.94 Per Filter

  6. ECP1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    ECP1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $20.33 Per Filter

  7. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  8. CQE-RC-04034 Crystal Quest Comparable Whole House Sediment Water Filter by Tier1

    CQE-RC-04034 Crystal Quest Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  9. HB-20-5W Harmsco Comparable Whole House Sediment Water Filter by Tier1

    Harmsco HB-20-5W Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  10. SPC-45-2005 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2005 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  11. SPC-45-2010 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    SPC-45-2010 Hydronix Comparable Whole House Sediment Water Filter by Tier1

    Fits most 20 x 5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  12. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More
    $21.09 MSRP:  $33.99
  13. P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits in housings that accept 20 x 4 1/2 inch replacement filters Learn More
    $21.99
  14. Brita 23.7-oz Hard-Sided Water Bottle – Light Pink (#35811)
  15. SDC-45-2010 Hydronix Water Filter Cartridge

    SDC-45-2010 Hydronix Sediment Water Filter Cartridge

    10 micron filter fits into water filtration systems that use 20-inch x 4.5-inch filter replacements Learn More

    As Low As $19.16 Per Filter

  16. Pentek ECP50-BB Whole House Water Filter Replacement Cartridge

    Pentek ECP50-BB Pleated Sediment Water Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 4 1/2-inch replacement filter cartridges Learn More

    As Low As $19.66 Per Filter

  17. Pentek WP25BB97P Whole House Water Filter Replacement Cartridge

    WP25BB97P Pentek Whole House Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $19.83 Per Filter

  18. RS6-SS2-S06 OmniFilter Whole House Cartridge

    RS6-SS2-S06 OmniFilter Whole House Water Filter Cartridge

    Fits any brand of heavy duty whole house water filtration system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More

    As Low As $19.83 Per Filter

  19. P1-20BB Sediment Water Filter by Tier1

    P1-20BB Sediment Water Filter by Tier1

    Fits in standard 20 x 4-1/2 inch sized housings Learn More

    As Low As $14.94 Per Filter

  20. P-250 Pentek Comparable Under Sink Water Filter Set Tier1

    P-250 Pentek Comparable Under Sink Water Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More
    $21.99 MSRP:  $41.99
  21. D-250A Culligan Comparable Under Sink Water Filter Set by Tier1

    D-250A Culligan Comparable Under Sink Water Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  22. P-250 Pentek Comparable Under Sink Water Filter Set by Tier1

    P-250 Pentek Comparable Under Sink Water Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  23. P-250A Pentek Comparable Under Sink Filter Set by Tier1

    P-250A Pentek Comparable Under Sink Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  24. WHKF-DB2 Whirlpool Comparable Under Sink Water Filter by Tier1

    WHKF-DB2 Whirlpool Comparable Under Sink Water Filter by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  25. SWC-45-2030 Hydronix Comparable String Wound Sediment Water Filter (30 micron) by Tier1

Items 1 to 25 of 381 total

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