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. TO1SS OmniFilter Whole House Water Filter

    TO1SS OmniFilter Whole House Water Filter Replacement Cartridge

    Designed to fit into any brand of whole house water filtration system that accepts standard 9 3/4 x 2 1/2 inch cartridges Learn More

    As Low As $9.67 Per Filter

  2. 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
    $34.05 MSRP:  $59.71
  3. HYDROLOGIC-22105

    HYDROLOGIC-22105

    $8.99 MSRP:  $12.06
  4. HYDROLOGIC-22110

    HYDROLOGIC-22110

    $18.99
  5. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More
    $19.05 MSRP:  $27.59
  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. PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 10 x 2.5-inch filters Learn More
    $3.99 MSRP:  $6.99
  8. 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  9. AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $7.99 MSRP:  $14.99
  10. FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1

    FXUSC GE Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $8.99 MSRP:  $12.34
  11. CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1

    CW-F-D Culligan Comparable Whole House Sediment Water Filter by Tier1 (2-Pack)

    Fits most standard 10 x 2.5-inch housings Learn More
    $9.99 MSRP:  $12.99

    Out of stock

  12. CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

    The CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  13. CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $4.99 MSRP:  $9.99
  14. S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  15. W20CLA American Plumber Comparable Whole House Water Filter by Tier1

    W20CLA American Plumber Comparable Whole House Water Filter by Tier1 (2-Pack)

    Standard 10 inch by 2.5 inch size fits many standard size filter housings Learn More
    $6.99 MSRP:  $10.99
  16. RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS1SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits OmniFilter RS1-SS and GE FXWPC Learn More
  17. FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1

    FXWTC GE Comparable Whole House Water Filter by Tier1 (2-Pack)

    Fits GE FXWTC, FXUSC, FXWSC and FWPC Learn More
  18. PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  19. RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits most standard 10 x 2.5-inch filter housings Learn More
    $3.99 MSRP:  $9.99
  20. AQUAPURE-AP-GRMB-10PP-10UB
  21. AQUAPURE-AP-GRMB-20PP-10UB
  22. WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)

    WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)

    Fits DuPont Whole House Filter Systems and most other brands of 10 x 2.5-inch systems Learn More
    $13.99 MSRP:  $21.16
  23. HYDRONIX-HF2-10CLWH12

    HYDRONIX-HF2-10CLWH12

    $15.99 MSRP:  $22.99
  24. HYDROLOGIC-22160

    HYDROLOGIC-22160

    $12.99 MSRP:  $17.99
  25. ARIES-AF-10-2010

    ARIES-AF-10-2010

    $16.99

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