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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.

36 Item(s)

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  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $37.99 MSRP: $62.09
    Save 39%
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • F8-CHROME Instapure Ultra Faucet Filter System - Chrome
  • 600R American Plumber Undersink Filter Replacement Cartridge
  • 40045 Camco TastePURE Inline Large Capacity Filter (2-Pack)
  • ELF-1ML Omnipure Replacement Filter Cartridge

    ELF-1ML Omnipure Replacement Filter Cartridge

    $31.99
    MSRP: $40.24
    Save 21%
  • HF-33 Brondell H2O+ Cypress Carbon Block Water Filter

    HF-33 Brondell H2O+ Cypress Carbon Block Water Filter

    $31.99
    MSRP: $36.79
    Save 13%
  • QC10-CB1 Pentek Undersink Quick-Change Filter System

    QC10-CB1 Pentek Quick-Change Water Filtration System

    $32.95
    MSRP: $40.99
    Save 20%
  • QC10-CBR-JG14 Pentek Undersink Quick-Change Filter System

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

    $33.99
    MSRP: $35.41
    Save 4%
  • E5720 Omnipure Replacement Filter Cartridge

    E5720 Omnipure Replacement Filter Cartridge

    $33.99
    MSRP: $36.34
    Save 6%
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99
    MSRP: $49.99
    Save 32%
  • R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - White
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • 47-55707G2 Water Factory Systems Replacement Filter Cartridge
  • ELF-1M-P-KDF Omnipure Water Filter Cartridge

    ELF-1M-P-KDF Omnipure Water Filter Cartridge

    $34.99
    MSRP: $37.34
    Save 6%
  • R8 Instapure Ultra Faucet Filter Replacement Cartridge (2-Pack) - Chrome
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $35.99
    MSRP: $43.69
    Save 18%
  • 3US-PF01 Filtrete Undersink Filter Replacement Cartridge
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $36.99
    MSRP: $49.44
    Save 25%
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99
    MSRP: $77.99
    Save 53%
  • ELFXL-1M Omnipure Replacement Filter Cartridge

    ELFXL-1M Omnipure Replacement Filter Cartridge

    $36.99
    MSRP: $44.84
    Save 18%
  • R1100 OmniFilter Quick Change Inline Refrigerator Filter
  • EP-30 Pentek Replacement Filter Cartridge

    EP-30 Pentek Replacement Water Filter Cartridge

    $37.99
    MSRP: $46.10
    Save 18%
  • FQSLF GE SmartWater Undersink Filter Set

    FQSLF GE SmartWater Undersink Filter Set (2 Filters)

    $38.99
    MSRP: $50.00
    Save 22%
  • GXFM07HBL GE Faucet Filter System
  • 47-55710G2 Water Factory Systems Replacement Postfilter Cartridge
  • WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set
  • E5715-P Omnipure Replacement Filter Cartridge

    E5715-P Omnipure Replacement Filter Cartridge

    $39.05
    MSRP: $57.49
    Save 32%
  • FXULC GE SmartWater Undersink Filter Replacement Cartridge
  • CQE-RC-04014 Crystal Quest Carbon Block Water Filter Cartridge
  • CBC-10BB-WF Tier1 Water Filter Cartridge

36 Item(s)

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