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. PS1-20C Pentek Sediment Water Filter

    PS1-20C Pentek Sediment Water Filter

    Fits standard filter housings using 20 x 2.5-inch filters Learn More
    $7.99 MSRP:  $13.55
  3. 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
  4. 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
  5. C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

    C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits most standard 20 x 2.5-inch housings Learn More
    $13.99 MSRP:  $21.99
  6. 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

  7. 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
    $4.99 MSRP:  $9.99
  8. 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
  9. R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 5-inch housings Learn More
    $13.99 MSRP:  $17.34
  10. W50PEHD American Plumber Comparable Whole House Water Filter by Tier1
  11. 155016-43 Pentek Comparable Whole House Water Filter by Tier1

    155016-43 Pentek Comparable Whole House Water Filter by Tier1

    Fits standard 20-inch by 2.5-inch filter housings Learn More
  12. R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits many styles of water filter housings that accept 20 x 5-inch filters Learn More
    $19.99 MSRP:  $20.99
  13. AP-GRMB-10PP-10UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-10PP-10 Whole House Water Filter Replacement

    Fits most standard 10 inch x 2 1/2 inch housings Learn More
    $7.99 MSRP:  $10.34
  14. AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure

    AP-GRMB-20PP-10UB Whole House Replacement Filter by 3M Aqua-Pure

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $7.99 MSRP:  $10.34
  15. FRSS-6 Sterilight 6 GPM 1-inch Flow Restrictor
  16. FRSS-6-34 Sterilight 6 GPM 3/4-inch Flow Restrictor
  17. Sterilight 8 GPM 1-inch Flow Restrictor
  18. FRSS-10 Sterilight 10 GPM 3/4-inch Flow Restrictor
  19. CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter

    Advanced Water Products CMB-510-HF Whole House Filter for IHS12-D4 System

    Made for the Trojan UV Max IHS12-D4 Water Disinfection System Learn More
  20. C2-02 Advanced Water Products 20-inch x 4.5-inch Replacement Carbon Whole House Filter

    C2-02 Advanced Water Products Replacement 20-inch x 4.5-inch Carbon Whole House Filter

    Fits most 20-inch x 4.5-inch filter housings, including the Trojan UV Max IHS12-D4 and IHS22-D4 Water Disinfection Systems Learn More
  21. C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    Fits most 20 x 4.5-inch filter housings including the Viqua IHS12-D4 and IHS22-D4 water disinfection systems. Learn More
    $49.99 MSRP:  $89.00
  22. CMB-510-HF Viqua Sediment Whole House Filter

    CMB-510-HF Viqua Sediment Whole House Filter

    Fits most 10 x 4.5-inch filter housings including the Viqua IHS12-D4 water disinfection system Learn More
    $16.99 MSRP:  $19.34
  23. FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor
  24. FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 MSRP:  $110.00
  25. FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    3/4 x 3/4 inch FNPT fitting Learn More
    $63.49 MSRP:  $96.99

Items 1 to 25 of 226 total

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