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

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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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33 Item(s)

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  • W9222900 Doulton Ceramic Water Filter
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge
  • Q5515-P Omnipure Replacement Filter Cartridge

    Q5515-P Omnipure Replacement Filter Cartridge

    $30.59
    MSRP: $43.99
    Save 30%

    Out of stock

  • TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  • QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  • Q5615 Omnipure Replacement Filter Cartridge

    Q5615 Omnipure Replacement Filter Cartridge

    $31.79
    MSRP: $39.99
    Save 21%
  • 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    $31.99
    MSRP: $35.06
    Save 9%
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $31.99
    MSRP: $34.49
    Save 7%
  • 800R OmniFilter Quick Change Replacement Filter Cartridge
  • 4US-MAXL-F01 Filtrete Replacement Filter Cartridge

    4US-MAXL-F01 3M Filtrete Replacement Water Filter Cartridge

    $32.89
    MSRP: $44.99
    Save 27%
  • QC10-CB1 Pentek Undersink Quick-Change Filter System
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $33.99
    MSRP: $44.99
    Save 24%
  • P-250A Pentek Undersink Filter Set
  • 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%

    Out of stock

  • E5720 Omnipure Replacement Filter Cartridge

    E5720 Omnipure Replacement Filter Cartridge

    $33.99
    MSRP: $36.34
    Save 6%

    Out of stock

  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • 1063-15-BA-K233 KX Technologies Whole House Replacement Filter Cartridge
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System

    IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System

    $35.29
    MSRP: $53.99
    Save 35%
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • EV9256-17 Everpure QL1 Single Filter Head with Bracket and 3/8 inch Quick-Connect Fittings
  • FQK1K GE SmartWater Inline Filter Replacement Cartridge

    FQK1K GE SmartWater Inline Filter Replacement Cartridge

    $36.49
    MSRP: $44.99
    Save 19%
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99
    MSRP: $77.99
    Save 53%
  • C-CS-S 3M Aqua-Pure Undersink Water Filter
  • GXRLQK GE SmartWater Inline Filter System

    GXRLQK GE SmartWater Inline Filter System

    $37.59
    MSRP: $54.99
    Save 32%

    Out of stock

  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $37.99
    MSRP: $54.99
    Save 31%
  • R1100 OmniFilter Quick Change Inline Refrigerator Filter
  • WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set
  • FQSLF GE SmartWater Undersink Filter Set
  • GXFM07HBL GE Faucet Filter System
  • EV9592-06 Everpure ADC RV and Marine Water Filter Replacement Cartridge
  • W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    $37.00
    MSRP: $54.26
    Save 32%

33 Item(s)

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