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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!
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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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  • WFDW120009W DuPont Universal Drinking Water Filter System
  • QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  • F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    $30.99 Retail Price:  $33.34
  • 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    $31.99 Retail Price:  $35.06
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • 4US-MAXL-F01 Filtrete Replacement Filter Cartridge
  • 800R OmniFilter Quick Change Replacement Filter Cartridge
  • GXRLQR GE SmartWater Inline Filter Replacement Cartridge

    GXRLQR GE SmartWater Inline Filter Replacement Cartridge

    $32.99 Retail Price:  $34.99
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • GXRLQ GE SmartWater Inline Filter System

    GXRLQ GE SmartWater Inline Filter System

    $33.99 Retail Price:  $36.79
  • QC10-CBR-JG14 Pentek Undersink Quick-Change Filter System

    QC10-CBR-JG14 Pentek Quick-Change Water Filter System

    $33.99 Retail Price:  $35.41
  • E5720 Omnipure Replacement Filter Cartridge

    E5720 Omnipure Replacement Filter Cartridge

    $33.99 Retail Price:  $36.34
  • R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - White
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - Chrome
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $35.99 Retail Price:  $43.69
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99 Retail Price:  $77.99
  • AP327 3M Aqua-Pure Water Filter Replacement Cartridge
  • 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
  • R1100 OmniFilter Quick Change Inline Refrigerator Filter
  • FQSLF GE SmartWater Undersink Filter Set

    FQSLF GE SmartWater Undersink Filter Set (2 Filters)

    $38.99 Retail Price:  $50.00
  • GXFM07HBL GE Faucet Filter System
  • E5715-P Omnipure Replacement Filter Cartridge

    E5715-P Omnipure Replacement Filter Cartridge

    $39.05 Retail Price:  $57.49
  • EV9592-06 Everpure ADC RV and Marine Water Filter Replacement Cartridge

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