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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Items 1 to 48 of 62 total

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  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    $153.99
    MSRP: $183.95
    Save 16%
  • 40 X 2.5 Spun Wound Polypropylene Replacement Filter by Tier1 (5 micron)
  • EP-20BB Pentek Replacement Water Filter
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  • FMHC-90-5EZ Flow-Max Jumbo 90 Pleated Water Filter Cartridge - 5 Micron
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99
    MSRP: $137.99
    Save 25%
  • 3M Aqua-Pure AP420 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP815 Whole House Water Filter
  • 3M Aqua-Pure AP815-2 Whole House Water Filter
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99
    MSRP: $342.69
    Save 30%
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99
    MSRP: $128.79
    Save 8%
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System

    CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System

    $2,499.99
    MSRP: $2,877.29
    Save 13%
  • CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    $74.99
    MSRP: $103.99
    Save 28%
  • CFS517 Cuno Whole House Filter Replacement Cartridge

    CFS517 Cuno Whole House Filter Replacement Cartridge

    $76.99
    MSRP: $87.39
    Save 12%
  • P-124B Cuno Whole House Filter Replacement Cartridge

    P-124B Cuno Whole House Water Filter Cartridge

    $97.05
    MSRP: $128.79
    Save 25%
  • SWC1350 Cuno Whole House Filter Replacement Cartridge

    SWC1350 Cuno Whole House Water Filter Cartridge

    $67.99
    MSRP: $81.64
    Save 17%
  • SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    $60.99
    MSRP: $81.64
    Save 25%
  • 7CB5 Everpure Replacement Filter Cartridge

    7CB5 Everpure Replacement Filter Cartridge

    $66.49
    MSRP: $115.99
    Save 43%
  • 7CB5-S Everpure Replacement Filter Cartridge

    7CB5-S Everpure Replacement Filter Cartridge

    $75.99
    MSRP: $86.24
    Save 12%
  • EV4339-12 Everpure Claris L Replacement Hot Water Filter Cartridge

    EV4339-12 Everpure Claris L Hot Water Filter Cartridge

    $195.99
    MSRP: $205.84
    Save 5%
  • EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    $69.99
    MSRP: $93.99
    Save 26%
  • EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    $599.99
    MSRP: $692.29
    Save 13%
  • 4WH-QCTO-F01 Filtrete Replacement Filter Cartridge

    4WH-QCTO-F01 3M Filtrete Replacement Water Filter

    $96.99
    MSRP: $128.79
    Save 25%
  • HC40-5 Harmsco Replacement Filter Cartridge

    HC40-5 Harmsco Replacement Filter Cartridge

    $92.99
    MSRP: $95.34
    Save 2%
  • 22070 Hydrologic BigBoy Replacement Carbon Filter

    22070 Hydrologic BigBoy Replacement Carbon Filter

    $88.99
    MSRP: $123.04
    Save 28%
  • K00174 Manitowoc Tri-Liminator Replacement Ice Maker Filter Cartridge
  • RC540T50-T Tier1 Countertop Reverse Osmosis Filter System
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • MATRIKX-CTO2-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • AR-PRE Manitowoc Arctic Pure Ice Machine Pre-Filter Assembly

    AR-PRE Manitowoc Arctic Pure Ice Machine Pre-Filter Assembly

    $179.99
    MSRP: $209.29
    Save 14%
  • K00337 Manitowoc Arctic Pure Replacement Ice Maker Pre-Filter Cartridge
  • UVBB-3 PURA UV Disinfection System

    UVBB-3 PURA UV Disinfection System

    $666.49
    MSRP: $877.99
    Save 24%
  • 3M Aqua-Pure AP510 Water Filter System

    AP510 3M Aqua-Pure Water Filtration System

    $141.99
    MSRP: $146.04
    Save 3%
  • 3M Aqua-Pure AP902 Whole House Water Filter

    AP902 3M Aqua-Pure Whole House Water Filtration System

    $204.99
    MSRP: $238.04
    Save 14%
  • SC200-DWS10 Sterilight Cobalt Drinking Water Filtration System

    SC200-DWS10 Drinking Water Filtration System by Viqua

    $610.05
    MSRP: $1,152.30
    Save 47%
  • 3M Aqua-Pure AP11T Whole House Water Filter

    AP11T 3M Aqua-Pure Whole House Water Filtration System

    $79.99
    MSRP: $94.29
    Save 15%
  • CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  • SST1HA 3M Aqua-Pure Water Filter System Housing
  • NM12-CK10F Tier1 Backwashing Filter

Items 1 to 48 of 62 total

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