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. W9222909 Doulton Imperial SuperCarb OBE Replacement Element

    W9222909 Doulton Imperial SuperCarb OBE Ceramic Water Filter

    Fits most standard 2.5-inch by 10-inch water filtration system housings Learn More
    $39.00 MSRP:  $59.71
  2. 22105 Hydrologic SmallBoy Sediment Filter

    22105 Hydrologic SmallBoy Sediment Filter

    Fits 10 inch by 2.5 inch filtration system housings Learn More
    $8.99 MSRP:  $12.06
  3. 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green

    22110 Hydrologic SmallBoy Carbon Filter (Green)

    Fits filtration system housings that use 10 inch by 2.5 inch filter Learn More
    $18.99
  4. 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  5. F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    InSinkErator F-601R Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Fits the InSinkErator F-201 Water Filtration System, and all Series 1100 and 2200 Instant Hot Water Dispensers Learn More
    $130.99 MSRP:  $134.42
  6. AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    Fits standard number 10, slim-line number 10, and other filter housings using 10 x 2.5-inch filters Learn More
    $36.99 MSRP:  $56.39
  7. FRSS-1.5 Sterilight 1.5 GPM 1/2-inch Flow Restrictor
  8. HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    Fits most standard 10-inch filter housings. Learn More
    $13.99 MSRP:  $19.99
  9. FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    1/2 x 1/2 inch FNPT fitting Learn More
    $52.99 MSRP:  $90.00
  10. Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge

    Pentek ChlorPlus-10 Whole House Carbon Block Water Filter Replacement Cartridge

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

    As Low As $18.00 Per Filter

  11. 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 $8.46 Per Filter

  12. EP5-10 Tier1 Carbon Block Water Filter

    EP-10 Pentek Comparable Carbon Block Water Filter by Tier1

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

    As Low As $7.50 Per Filter

  13. CBC-10 Pentek Replacement Water Filter

    Pentek CBC-10 Water Filter Replacement Cartridge

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

    As Low As $15.00 Per Filter

  14. Everpure EV9617-21 Comparable Food Service Replacement Filter by Tier1

    Everpure EV9617-21 Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More
    $26.99 MSRP:  $92.99
  15. D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1

    D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1

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

    As Low As $0.00 Per Filter

  16. D-25 Culligan Comparable Undersink Replacement Cartridge by Tier1

    D-25 Culligan Comparable Undersink Replacement Cartridge by Tier1

    Fits standard 9 3/4-inch x 2 1/2-inch replacement filter cartridges. Learn More

    As Low As $0.00 Per Filter

  17. WCC American Plumber Comparable UndersinkReplacement Cartridge by Tier1

    WCC Amercian Plumber Comparable Undersink Replacement Cartridge by Tier1

    Fits standard 9 3/4-inch x 2 1/2-inch replacement filter cartridges. Learn More

    As Low As $0.00 Per Filter

  18. CC-10 Pentek Comparable Undersink Replacement Cartridge by Tier1

    CC-10 Pentek Comparable Undersink Replacement Cartridge by Tier1

    Fits standard 9 3/4-inch x 2 1/2-inch replacement filter cartridges. Learn More

    As Low As $0.00 Per Filter

  19. GAC1SS Omnifilter Comparable Undersink Replacement Cartridge by Tier1

    GAC1SS Omnifilter Comparable Undersink Replacement Cartridge by Tier1

    Fits standard 9 3/4-inch x 2 1/2-inch replacement filter cartridges. Learn More

    As Low As $0.00 Per Filter

  20. EV9612-50 Comparable Food Service Replacement Filter by Tier1

    EV9612-50 Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

  21. EV9612-51 Everpure Comparable Food Service Replacement Filter by Tier1

    EV9612-51 Everpure Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

  22. EV9612-00 Everpure Comparable Food Service Replacement Filter by Tier1

    EV9612-00 Everpure Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

  23. EV9612-55 Everpure Comparable Food Service Replacement Filter by Tier1

    EV9612-55 Everpure Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

  24. EV3107-51 Everpure Comparable Food Service Replacement Filter by Tier1

    EV3107-51 Everpure Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

  25. EV9617-21 Everpure Comparable Food Service Replacement Filter by Tier1

    EV9617-21 Everpure Comparable Food Service Replacement Filter by Tier1

    Fits QL2, QL3, QL7I Single Heads Learn More

    As Low As $0.00 Per Filter

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