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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19 Item(s)

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  1. AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge

    3M Aqua-Pure AP-GRMB-20PP-20 Whole House Water Filter Replacement

    Fits most standard 20 inch x 2 1/2 inch housings Learn More
    $11.99 MSRP:  $14.34
  2. Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    Fits most housings that accept 20-inch x 2.5-inch water filter cartridges Learn More

    As Low As $11.60 Per Filter

  3. P20-20 Tier1 Sediment Water Filter

    P20-20 Tier1 Sediment Water Filter

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $5.24 Per Filter

  4. P25-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P25-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  5. PD-25-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    PD-25-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $6.83 Per Filter

  6. PS20-20C Pentek Comparable Whole House Sediment Water Filter by Tier1

    PS20-20C Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $6.83 Per Filter

  7. PX20-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1

    PX20-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  8. PMB20-20 Watts Comparable Whole House Sediment Water Filter by Tier1

    FPMB20-20 Watts Comparable Whole House Sediment Water Filter by Tier1

    Fits standard 20 x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  9. SPC-25-2020 Hydronic Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2020 Hydronic Comparable Pleated Sediment Water Filter by Tier1

    20 inches by 2.5 inches, 20 micron. Fits into systems that use Liquatec SPF-25-2020, Pentek 255487-43 and Watts FM-20-20 water filters Learn More
    $9.99 MSRP:  $20.99
  10. SWC-25-2020 Hydronix Comparable String Wound Sediment Water Filter (20 micron) by Tier1
  11. AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    The AP817-2 Aquapure comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  12. SPC-25-2020 Hydronic Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2020 Hydronic Comparable Pleated Sediment Water Filter by Tier1

    20 inches by 2.5 inches, 20 micron. Fits into systems that use Liquatec SPF-25-2020, Pentek 255487-43 and Watts FM-20-20 water filters Learn More

    As Low As $0.00 Per Filter

  13. SWC-25-2020 Hydronix Comparable String Wound Sediment Water Filter (20 micron) by Tier1
  14. 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
  15. 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
  16. 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
  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. SPC-25-2020 Hydronix Pleated Sediment Water Filter

    SPC-25-2020 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 20 micron. Fits into systems that use Liquatec SPF-25-2020, Pentek 255487-43 and Watts FM-20-20 water filters Learn More
    $14.99 MSRP:  $20.99
  19. 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

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