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

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Water Filtration Systems, Filters, & Parts

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. AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter

    AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter

    Fits water filtration systems that accept 20 x 4.5 inch cartridges, including the #20 Big Blue and Big Boy housings by Pentek Learn More
    $121.99
  2. 150564 Pentek Whole House Water Filter System (Clear/ Blue)

    150564 Pentek Whole House Water Filter System (Clear/ Blue)

    Fits Quick Connect 3/4-inch NPT Learn More
    $77.99
  3. Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    Receives any standard 20 inch by 4.5 inch filter cartridge Learn More
    $58.99 MSRP:  $73.99
  4. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    Fits most standard 10-inch housings Learn More

    $96.99

  5. C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  6. HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  7. HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  8. EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

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

    As Low As $63.08 Per Filter

  9. EPM-20BB Pentek Whole House Filter Cartridge

    EPM-20BB Pentek Whole House Filter Replacement Cartridge

    Fits Pentek 20-inch Big Blue and other heavy-duty filter housings Learn More

    As Low As $43.66 Per Filter

  10. GAC20-BB Pentek Whole House Water Filter

    GAC20-BB Pentek Whole House Filter Replacement Cartridge

    Fits any heavy duty housing that uses 20-inch x 4 1/2-inch replacement filter cartridges Learn More

    As Low As $0.00 Per Filter

  11. ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)

    ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)

    Fits most standard 10 x 5-inch housings Learn More

    $134.99

  12. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  13. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    $181.99

  14. ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)

    ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)

    Fits most standard 10 x 5-inch housings Learn More

    $55.99

  15. ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)

    ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)

    Fits most standard 10 x 5-inch housings Learn More

    $80.99

  16. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  17. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  18. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    $67.99

  19. ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    Fits most standard 10 x 5-inch housings Learn More

    $261.99

  20. ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    ECP5-20 Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)

    Fits most 20 x 5-inch filter housings Learn More

    (Retail Price: $531.99 ) $449.99

  21. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    (Retail Price: $397.00 ) $335.99

  22. EP-20BB Pentek Comparable Carbon Block Water Filter by Tier1

    EP-20BB Pentek Comparable Carbon Block Water Filter by Tier1

    Fits filtration system housings that accepts 20 x 4.5 inch cartridges Learn More

    As Low As $36.00 Per Filter

  23. CB6 OmniFilter Comparable Whole House Carbon Water Filter by Tier1

    CB6 OmniFilter Comparable Whole House Carbon Water Filter by Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  24. KX-MATRIKX-1-HD10 KX Matrikx Comparable Whole House Carbon Water Filter By Tier1

    KX-MATRIKX-1-HD10 KX Matrikx Comparable Whole House Carbon Water Filter By Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  25. FLOPLUS-10BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    FLOPLUS-10BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits filtration system housings that accepts 10 x 4.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

Items 1 to 25 of 118 total

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