Discount Water Filters and Air Filters at Discount Filter Store.com

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  • Our products are price match guaranteed!
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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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  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $47.99 MSRP: $69.77
    Save 31%
  • MAXETW-FF20 Watts Comparable C-MAX Whole House Water Filter Cartridge by Tier1
  • CB-45-2010 Hydronix Comparable Replacement Filter Cartridge by Tier1
  • 3M Aqua-Pure AP110-3C Whole House Water Filter

    AP110-3C 3M Aqua-Pure Water Filter Cartridge

    $40.99
    MSRP: $49.44
    Save 17%
  • 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99
    MSRP: $50.59
    Save 17%
  • DBC-10EX2 Pentek Replacement Filter Cartridge

    DBC-10EX2 Pentek Water Filter Cartridge Replacement

    $43.99
    MSRP: $57.95
    Save 24%
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $45.39
    MSRP: $67.99
    Save 33%
  • EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    $45.99
    MSRP: $81.65
    Save 44%
  • UDS-10EX1 Pentek Whole House Filter Replacement Cartridge
  • EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    $46.65
    MSRP: $65.54
    Save 29%
  • 47-55708G2 Water Factory Systems Replacement Filter Cartridge
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99
    MSRP: $59.79
    Save 20%
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge Comparable by Tier1
  • MATRIKX-CTO2-HD20 KX Technologies MatrikX Comparable Whole House Filter Replacement Cartridge by Tier1
  • EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    $48.99
    MSRP: $58.64
    Save 16%
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • CFS9720 Cuno Whole House Filter Replacement Cartridge

    CFS9720 Cuno Whole House Filter Replacement Cartridge

    $49.99
    MSRP: $61.97
    Save 19%
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge

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