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. 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
  2. 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

  3. 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

  4. 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

  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

    As Low As $13.54 Per Filter

  6. 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

  7. 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

  8. 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

  9. 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
  10. 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
  11. CFB-Plus20 Pentek Replacement Filter Cartridge

    CFB-Plus20 Pentek Replacement Water Filter Cartridge

    Fits into most standard water filtration system housings that accept 20-inch x 2.5-inch filter cartridges Learn More
    $17.89 MSRP:  $32.99
  12. 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
    $10.99 MSRP:  $16.09

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