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. 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
  2. SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 5 micron. Fits into systems that use Liquatec SPF-25-2005, Pentek 255486-43 and Watts FM-5-20 water filters Learn More
    $14.99 MSRP:  $20.99
  3. SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 1 micron. Built to replace Liquatec SPF-25-2001, Pentek 255485-43 and Watts FM-1-20 water filters Learn More
    $18.99 MSRP:  $25.99
  4. SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    30 micron filter, sized 20 x 2.5 inches Learn More
    $16.99 MSRP:  $23.99
  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. EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    Fits standard 20 x 2.5-inch housings Learn More
    $11.99 MSRP:  $20.99
  7. C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)

    C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1 (2-Pack)

    Fits most standard 20 x 2.5-inch housings Learn More

    $27.09

  8. C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1 (4-Pack)

    Fits most standard 20 x 2.5-inch housings Learn More

    $54.99

  9. 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

  10. Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

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

    As Low As $15.50 Per Filter

  11. EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $12.00 Per Filter

  12. Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $13.00 Per Filter

  13. Pentek P1-20 Whole House Water Filter Replacement Cartridge

    Pentek P1-20 Sediment Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $9.75 Per Filter

  14. 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

    As Low As $13.54 Per Filter

  15. P5-20 Tier1 Sediment Water Filter

    P5-20 Tier1 Whole House Sediment Water Filter

    Sized 20 x 2.5 inches Learn More

    As Low As $4.50 Per Filter

  16. EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    Sized 20 x 2.5 inches Learn More

    As Low As $11.04 Per Filter

  17. 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

  18. Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

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

    As Low As $10.80 Per Filter

  19. P1-20 Pentek Comparable Sediment Water Filter by Tier1

    P1-20 Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 2.5-inch filters Learn More

    As Low As $4.54 Per Filter

  20. AQUA-PURE-AP124-2C Polypropylene Sediment Water Filter by Tier1

    AQUA-PURE-AP124-2C Polypropylene Sediment Water Filter by Tier1

    Fits standard 20 inch x 2.5 inch filter housings Learn More

    As Low As $0.00 Per Filter

  21. KX-MATRIKX-1-20 Matrikx Comparable Whole House Carbon Water Filter by Tier1

    KX-MATRIKX-1-20 Matrikx Comparable Whole House Carbon Water Filter by Tier1

    Fits filtration system housings that accepts 20 x 2.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  22. CR1-20 KX MatrikX Comparable Whole House Carbon Water Filter by Tier1

    CR1-20 KX MatrikX Comparable Whole House Carbon Water Filter by Tier1

    Fits filtration system housings that accepts 20 x 2.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  23. CHLORPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

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

    Fits filtration system housings that accepts 20 x 2.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  24. FLOPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1

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

    Fits filtration system housings that accepts 20 x 2.5 inch cartridges Learn More

    As Low As $0.00 Per Filter

  25. SDC-25-2001 Hydronix Comparable Sediment Water Filter by Tier1

    SDC-25-2001 Hydronix Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 20 x 2.5-inch filters Learn More

    As Low As $0.00 Per Filter

Items 1 to 25 of 56 total

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