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

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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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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Items 145 to 192 of 383 total

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  • ELF-1M-P-KDF Omnipure comparable granular activated carbon filter by Tier1
  • 4621-20 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • NU-MC2 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-12 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-31 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-10 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-11 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • NU-i20002 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • ECO-i20002 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • CFS9110 Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9112 Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9710-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9110-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9812X-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9112-S Cuno Comparable Food Service Replacement Filter by Tier1
  • EP25 Aquapure Comparable Food Service Replacement Filter by Tier1
  • AP317 Aquapure Comparable Food Service Replacement Filter by Tier1
  • 9320-2401 Ecolab Comparable Food Service Replacement Filter by Tier1
  • ECO-MC Ecolab Comparable Food Service Replacement Filter by Tier1
  • 9320-2402 Ecolab Comparable Food Service Replacement Filter by Tier1
  • 9320-2403 Ecolab Comparable Food Service Replacement Filter by Tier1
  • FL4S Follett Comparable Food Service Replacement Filter by Tier1
  • 130245 Follett Comparable Food Service Replacement Filter by Tier1
  • 954297 Follett Comparable Food Service Replacement Filter by Tier1
  • SSMRC1 Scotsman Comparable Food Service Replacement Filter by Tier1
  • RFC-93 Whole House Filter Replacement Cartridge by Tier1
  • RFC-20 Whole House Filter Replacement Cartridge by Tier1
  • RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    RFC-20BB Whole House Filter Replacement Cartridge by Tier1

    $48.99
    MSRP: $56.99
    Save 14%
  • WHKF-GAC Whirlpool Whole House Filter Replacement Cartridge by Tier1
  • GAC-BB Whole House Filter Replacement Cartridge by Tier1
  • RFC-20 Pentek Comparable Whole House Filter Replacement Cartridge by Tier1
  • 3M Aqua-Pure AP117RO Reverse Osmosis Filter (2 Pack)

    3M Aqua-Pure AP117RO Reverse Osmosis Filter (2 Pack)

    $52.99
    MSRP: $66.99
    Save 21%
  • DW-200-R American Plumber Undersink Filter Replacement Cartridge
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • WCC American Plumber Undersink Filter Replacement Cartridge

    WCC American Plumber Undersink Filter Replacement Cartridge

    $19.99
    MSRP: $26.44
    Save 24%
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    3M Aqua-Pure AP117 Whole House Filter Replacement Cartridge

    $28.99
    MSRP: $54.13
    Save 46%
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99
    MSRP: $34.49
    Save 25%
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge
  • 40624 Camco Evo Replacement Filter Cartridge

    40624 Camco Evo Replacement Water Filter Cartridge

    $18.99
    MSRP: $19.54
    Save 3%
  • 750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter
  • D-20A Culligan Level 1 Undersink Water Filter Replacement Cartridge
  • D-250A Culligan Undersink Filter Replacement Cartridge Set

    D-250A Culligan Undersink Filter Replacement Cartridge Set

    $31.99
    MSRP: $46.99
    Save 32%
  • D-28 Culligan Level 1 Undersink Filter Replacement Cartridge
  • IC-100A Culligan Level 1 Disposable Inline Filter

    IC-100A Culligan Level 1 Disposable Inline Filter

    $12.99
    MSRP: $16.78
    Save 23%

Items 145 to 192 of 383 total

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