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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!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

Items 1 to 48 of 108 total

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  • Everpure H-54 Water Filter Replacement Cartridge (EV9730-06)
  • 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    $394.99
    MSRP: $397.34
    Save 1%
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • DUPONT-WFQTC90001
  • CB6 Multipure Aquaversa Comparable Water Filter: HDG-CB6-14 HydroGuard

    CB6 Comparable Water Filter: HDG-CB6-14 HydroGuard

    $29.99
    MSRP: $43.99
    Save 32%
  • FXWTC GE SmartWater 6-Pack Whole House Filter Replacement Cartridge
  • NCP-BB Pentek Whole House Water Filter

    NCP-BB Pentek Whole House Filter Replacement Cartridge

    $32.99 MSRP: $36.34
    Save 9%
  • W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge
  • 600R American Plumber Undersink Filter Replacement Cartridge
  • WCC American Plumber Undersink Filter Replacement Cartridge
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99
    MSRP: $58.34
    Save 4%
  • 3M Aqua-Pure AP-C78 Water Filter Replacement Cartridge
  • AP-DW80/90 3M Aqua-Pure Water Filter Set

    AP-DW80/90 3M Aqua-Pure Pre and Post Filter Set

    $116.99
    MSRP: $173.90
    Save 33%
  • 3M Aqua-Pure APIL3R Inline Water Filter
  • C-COMPLETE 3M Aqua-Pure Undersink Water Filter
  • C-CS-S 3M Aqua-Pure Undersink Water Filter

    C-CS-S 3M Aqua-Pure Undersink Water Filter Cartridge

    $37.99
    MSRP: $42.54
    Save 11%
  • C-LC 3M Aqua-Pure Undersink Water Filter

    C-LC 3M Aqua-Pure Undersink Water Filter Cartridge

    $50.99
    MSRP: $65.54
    Save 22%
  • CQE-RC-04049 Crystal Quest Fluoride Multi Replacement Filter Cartridge
  • 01013029 Culligan Reverse Osmosis Filter Cartridge
  • 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter
  • D-250A Culligan Undersink Filter Replacement Cartridge Set
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • IC-1000 Culligan Inline Filter
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • IC-EZ-4 Culligan Level 4 Easy-Change Inline Filter System
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • RV-EZ-3 Culligan Level 3 Easy-Change RV Inline Filter System
  • SY-1000 Culligan Water Filtration System
  • US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  • US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  • DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    $28.99
    MSRP: $31.34
    Save 7%
  • W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9123019 Doulton UltraCarb SI Replacement Element

    W9123019 Doulton UltraCarb SI Ceramic Filter Candle

    $55.81
    MSRP: $66.48
    Save 16%
  • W9223002 Doulton Replacement Ceramic Filter

    W9223002 Doulton Slimline Replacement Ceramic Filter

    $53.99
    MSRP: $60.87
    Save 11%
  • W9223026 Doulton Replacement Ceramic Filter
  • W9330957 Doulton UltraCarb Undersink Ceramic Candle Filter System
  • W9331032 Doulton UltraCarb Countertop Filter System

    W9331032 Doulton HCP UltraCarb Countertop Filter System

    $135.99
    MSRP: $158.65
    Save 14%

Items 1 to 48 of 108 total

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