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. 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
  2. P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    Fits into most industry standard 10-inch water filtration system housings Learn More

    As Low As $3.00 Per Filter

  3. P5-478 Pentek Sediment Water Filter

    P5-478 Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 5 x 2.5-inch filters Learn More

    As Low As $3.16 Per Filter

  4. RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    RS2SS OmniFilter Comparable Whole House Water Filter by Tier1

    Fits most standard 10 x 2.5-inch filter housings Learn More
    $4.99 MSRP:  $9.99
  5. 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
  6. WP-5 Pentek Comparable Replacement Filter Cartridge by Tier1

    WP-5 Pentek Comparable Replacement Filter Cartridge by Tier1

    Fits most standard 10 x 2.5-inch filter housings Learn More

    As Low As $0.00 Per Filter

  7. PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    For use in compact filtration system housings that use 2.5 x 10 inch filters Learn More

    As Low As $4.72 Per Filter

  8. P5-30 30 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)

    P5-30 30 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)

    Fits most filtration system housings that accept 30-inch x 2.5-inch water filter cartridges Learn More
    $6.95
  9. KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter

    KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter

    Fits Culligan AC15, AC30, LC50, and H83 Reverse Osmosis systems Learn More
    $7.19 MSRP:  $13.99
  10. AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1

    AP110 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

    Fits most standard 10 x 2.5-inch housings Learn More
    $7.99 MSRP:  $14.99
  11. Hydronix SPC-25-1005 Pleated Water Filter

    SPC-25-1005 Hydronix Pleated Sediment Water Filter

    9 7/8 inches by 2.5 inches, 5 micron. Fits into systems that use Liquatec SPF-25-1005, Pentek 255482-43 and Watts FM-5-975 water filters Learn More

    As Low As $5.16 Per Filter

  12. 22105 Hydrologic SmallBoy Sediment Filter

    22105 Hydrologic SmallBoy Sediment Filter

    Fits 10 inch by 2.5 inch filtration system housings Learn More
    $8.99 MSRP:  $12.06
  13. IC10-14C Coconut GAC Inline Water Filter (1/4-inch FPT)
  14. WHKF-IMTO Whirlpool Comparable Coconut GAC Inline Water Filter by Tier1 (1/4-inch FPT)
  15. CL6ROT33-B Omnipure Comparable Granular Activated Inline Water Filter by Tier1
  16. ICF-10 Hydronix Comparable Granular Activated Carbon Inline Water Filter by Tier1
  17. TS-101L Pentek Comparable Granular Activated Carbon Inline Water Filter by Tier1
  18. ICF-6 Hydronix Comparable Granular Activated Carbon Inline Water Filter by Tier1
  19. K2333-KK Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  20. K2533-KK Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  21. K5633JJ Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  22. K2528-KK Omnipure Comparable Inline Coconut Carbon Water Filter Tier1

    K2528-KK Omnipure Comparable Inline Coconut Carbon Water Filter By Tier1

    Fits most standard 3/8 inch water lines Learn More

    As Low As $0.00 Per Filter

  23. IC-101L Pentek Comparable Granular Activated Carbon Inline Water Filter 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. 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

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