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. 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
  2. P5-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P5-20 Pentek Comparable Whole House Sediment Water Filter by Tier1

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

    As Low As $4.50 Per Filter

  3. 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
  4. SPC-25-2005 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2005 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    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
    $9.99 MSRP:  $20.99
  5. SPC-25-2005 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2005 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  6. SPC-25-2010 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2010 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    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

    As Low As $0.00 Per Filter

  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. SDC-25-2005 Hydronix Comparable Whole House Replacement Sediment Filter Cartridge by Tier1
  9. 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
  10. 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
  11. P5-20 Pentek Whole House Filter Replacement Cartridge

    P5-20 Pentek 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 $3.89 Per Filter

  12. Pentek PS5-20C Whole House Replacement Sediment Water Filter Cartridge

    PS5-20C Pentek Whole House Replacement Sediment Filter Cartridge

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

    As Low As $8.50 Per Filter

  13. 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
  14. Pentek PD-5-20 Whole House Water Filter Replacement Cartridge

    PD-5-20 Pentek 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 $9.00 Per Filter

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