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

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  • Your filters are guaranteed to be the right fit!
  • 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.

Items 1 to 48 of 145 total

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  • EVERPURE-EV9730-06

    EVERPURE-EV9730-06

    $71.24 Retail Price:  $128.79
  • 200378 Axeon HF1-4021 Reverse Osmosis Membrane

    200378 Axeon HF1-4021 Reverse Osmosis Membrane

    $162.05 Retail Price:  $223.99
  • 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    $394.99 Retail Price:  $397.34
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99 Retail Price:  $64.99
  • P195BN Cuno Water Filter Cartridge

    P195BN 3M Cuno Water Filter Cartridge

    $176.99 Retail Price:  $237.99
  • W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge
  • AP327 3M Aqua-Pure Water Filter Replacement Cartridge
  • 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    $31.99 Retail Price:  $35.06
  • DW-2000-RB American Plumber Replacement Filter Cartridge

    DW-2000-RB American Plumber Replacement Filter Cartridge

    $59.99 Retail Price:  $61.28
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99 Retail Price:  $58.34
  • 110720 Amway eSpring UV Water Purification System
  • 3M Aqua-Pure AP317 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP5527 Reverse Osmosis Filter
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • 3M Aqua-Pure AP-C78 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP-DW70 Undersink 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 Retail Price:  $198.46
  • 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge
  • 3M Aqua-Pure APIL3R Inline Water Filter

    APIL3R 3M Aqua-Pure Inline Water Filter Cartridge

    $40.99 Retail Price:  $45.41
  • C-COMPLETE 3M Aqua-Pure Undersink Water Filter

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

    $66.99 Retail Price:  $88.54
  • C-CS-S 3M Aqua-Pure Undersink Water Filter

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

    $37.99 Retail Price:  $42.54
  • C-LC 3M Aqua-Pure Undersink Water Filter

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

    $50.99 Retail Price:  $65.54
  • EP15 3M Aqua-Pure Whole House Water Filter

    EP15 3M Aqua-Pure Whole House Water Filter Cartridge

    $69.99 Retail Price:  $82.79
  • EP25 3M Aqua-Pure Whole House Water Filter

    EP25 3M Aqua-Pure Whole House Water Filter Cartridge

    $91.99 Retail Price:  $111.54
  • EP35R 3M Aqua-Pure Water Filter Cartridge

    EP35R 3M Aqua-Pure Replacement Water Filter Cartridge

    $115.99 Retail Price:  $123.04
  • WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    $290.21 Retail Price:  $386.95
  • WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    $151.46 Retail Price:  $201.95
  • WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    $138.71 Retail Price:  $184.95
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • CQE-WC-00906 Crystal Quest Water Cooler

    CQE-WC-00906 Crystal Quest Water Cooler

    $599.99 Retail Price:  $692.29
  • CQE-WC-00907 Crystal Quest Water Cooler

    CQE-WC-00907 Crystal Quest Water Cooler

    $702.99 Retail Price:  $810.74
  • CQE-WC-00909 Crystal Quest Water Cooler

    CQE-WC-00909 Crystal Quest Water Cooler

    $596.99 Retail Price:  $688.84
  • CQP-WC-05900 Crystal Quest Water Cooler

    CQP-WC-05900 Crystal Quest Water Cooler

    $792.99 Retail Price:  $910.79
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • IC-EZ-4 Culligan Level 4 Easy-Change Inline Filter System
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • RV-EZ-1 Culligan Level 1 Easy-Change RV Inline Filter System
  • RV-EZ-3 Culligan Level 3 Easy-Change RV Inline Filter System
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  • US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $35.99 Retail Price:  $43.69

Items 1 to 48 of 145 total

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