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. SDC-25-2005 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-25-2005 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $6.99 MSRP:  $8.27
  2. SDC-25-2010 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-25-2010 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $8.99 MSRP:  $12.34
  3. SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge

    SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $7.99 MSRP:  $11.34
  4. PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $9.99 MSRP:  $11.72
  5. PD-50-20 Pentek Whole House Replacement Sediment Filter Cartridge

    PD-50-20 Pentek Whole House Replacement Sediment Filter Cartridge

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $9.99 MSRP:  $12.98
  6. PX01-20 Purtrex Replacement Filter Cartridge

    PX01-20 Purtrex Replacement Water Filter Cartridge

    Fits filtration housing systems that use 2.5-inch x 20-inch cartridges Learn More
    $7.99 MSRP:  $10.34
  7. PX05-20 Purtrex Replacement Water Filter

    PX05-20 Purtrex Replacement Water Filter

    For filtration system housings that use 2.5-inch x 20-inch replacement water filters Learn More
    $4.99 MSRP:  $9.19
  8. PX10-20 Purtrex Replacement Filter Cartridge

    PX10-20 Purtrex Replacement Water Filter

    Fits industry standard filtration system housings that use 2.5-inch x 20-inch replacement filters Learn More
    $6.99 MSRP:  $9.19
  9. PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    For industry standard filtration system housings that use 2.5-inch x 20-inch replacement filters Learn More
    $4.99 MSRP:  $8.04
  10. PX75-20 Purtrex Replacement Filter Cartridge

    PX75-20 Purtrex Replacement Water Filter Cartridge

    Fits industry standard water filtration system housings that use 2.5-inch x 20-inch cartridges Learn More
    $4.99 MSRP:  $8.04
  11. FPMB20-20 Watts Flo-Pro Whole House Replacement Filter Cartridge

    FPMB20-20 Watts Flo-Pro Whole House Water Filter Cartridge

    Fits water filtration system housing that accept a 20-inch x 2.5-inch filter Learn More
    $9.99 MSRP:  $12.34
  12. FPMB5-20 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-20 Watts Flo-Pro Water Filter Cartridge

    Fits water filtration system housing that accept a 20-inch x 2 1/2-inch filter Learn More
    $5.99 MSRP:  $6.89
  13. GX01-20 Hytrex Replacement Filter Cartridge

    GX01-20 Hytrex Water Filter Cartridge

    For use in filtration system housings that use 2.5-inch x 20-inch water filters Learn More
    $8.99 MSRP:  $12.64
  14. GX03-20 Hytrex Replacement Filter Cartridge

    GX03-20 Hytrex Replacement Water Filter Cartridge

    For standard filtration system housings that use 2.5-inch x 20-inch replacement water filters Learn More
    $8.99 MSRP:  $12.64
  15. GX05-20 Hytrex Replacement Filter Cartridge

    GX05-20 Hytrex Replacement Water Filter Cartridge

    Fits filtration system housings that use 2.5-inch x 20-inch water filter cartridges Learn More
    $9.99 MSRP:  $11.49
  16. GX10-20 Hytrex Replacement Filter Cartridge

    GX10-20 Hytrex Water Filter Cartridge

    For filtration system housings that use 2.5-inch x 20-inch water filter cartridges Learn More
    $7.99 MSRP:  $11.49
  17. GX20-20 Hytrex Replacement Filter Cartridge

    GX20-20 Hytrex Water Filter Cartridge

    Fits water filter housings that use 2.5-inch x 20-inch cartridges Learn More
    $7.99 MSRP:  $11.49
  18. GX50-20 Hytrex Replacement Filter Cartridge

    GX50-20 Hytrex Water Filter Cartridge

    Fits industry standard water filtration system housings that use 2.5-inch x 20-inch filters Learn More
    $7.99 MSRP:  $11.49
  19. SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    SDC-25-2001 Hydronix Sediment Water Filter Cartridge

    2.5 inches by 20 inches, fits systems that use Liquatec SDF-25-2001, Pentek 155304-43, Pentek P1-20 and Watts FPMB1-20 water filters Learn More
    $6.99 MSRP:  $8.04
  20. SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    SDC-25-2050 Hydronix Sediment Water Filter Cartridge

    50 micron filter, sized 2.5x20 inches Learn More
    $8.99 MSRP:  $11.34
  21. P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge

    P50-20 Tier1 Polypropylene Sediment Water Filter Cartridge

    Fits standard 20 inch x 2.5 inch filter housings Learn More
    $5.99 MSRP:  $11.99
  22. AP-GRMB-20PP-20UB Aquapure Comparable Sediment Water Filter by Tier 1

    AP-GRMB-20PP-20UB 3M Aqua-Pure Comparable Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  23. SDC-25-2005 Hydronix Comparable Whole House Replacement Sediment Filter Cartridge by Tier1
  24. 22140 Hydrologic TallBoy Sediment Filter

    22140 Hydrologic TallBoy Sediment Filter

    Fits the HydroLogic TallBoy Filter housing and other filtration system housings that use 20 inch by 2.5 inch replacement filters Learn More
    $9.99 MSRP:  $13.79
  25. 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

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