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 250 total

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  • 55897C Halsey-Taylor Water Sentry VII Drinking Fountain Filter
  • 55898C Halsey-Taylor Drinking Fountain Filter Replacement Cartridge

    55898C Halsey-Taylor Water Filter Cartridge Replacement

    $91.69
    MSRP: $160.99
    Save 43%
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • F8-WHITE Instapure Ultra Faucet Filter System - White

    F8 Instapure Ultra Faucet Filter System - White

    $28.99
    MSRP: $31.04
    Save 7%
  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $21.09
    MSRP: $33.99
    Save 38%
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • WFDWC70001 DuPont Universal Drinking Water Carbon Block Cartridge
  • WFPF13003B DuPont Universal Whole House Filtration System
  • WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System
  • WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge
  • WFHDC8001 DuPont Universal Heavy Duty Carbon Wrap 2-Phase Cartridge
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • C2-02 Advanced Water Products 20-inch x 4.5-inch Replacement Carbon Whole House Filter
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $49.99
    MSRP: $89.00
    Save 44%
  • 22120 Hydrologic Stealth RO 100GPD Membrane

    22120 Hydrologic Stealth RO 100GPD Membrane

    $59.99
    MSRP: $64.99
    Save 8%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)
  • EP-20BB Pentek Replacement Water Filter
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • EPM-20BB Pentek Whole House Filter Cartridge

    EPM-20BB Pentek Whole House Filter Replacement Cartridge

    $47.99 MSRP: $59.99
    Save 20%
  • Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    $26.99 MSRP: $34.49
    Save 22%
  • GAC20-BB Pentek Whole House Water Filter

    GAC20-BB Pentek Whole House Filter Replacement Cartridge

    $44.99 MSRP: $66.31
    Save 32%
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $47.99 MSRP: $69.77
    Save 31%
  • Everpure EV9617-36 Comparable Food Service Replacement Filter by Tier1
  • CB6 OmniFilter Comparable Whole House Carbon Water Filter by Tier1
  • KX-MATRIKX-1-HD10 KX Matrikx Comparable Whole House Carbon Water Filter By Tier1
  • FLOPLUS-10BB Pentek Comparable Whole House Carbon Water Filter by Tier1
  • KX-MATRIKX-1-20 Matrikx Comparable Whole House Carbon Water Filter by Tier1
  • CR1-20 KX MatrikX Comparable Whole House Carbon Water Filter by Tier1
  • CHLORPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • FLOPLUS-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • KX-MATRIKX-1-HD20 Technologies MatrikX Whole House Carbon Filter By Tier1
  • MATRIKX-5-HD20 KX Technologies MatrikX Comparable Whole House Carbon Filter by Tier1
  • FLOPLUS-20BB Pentek Comparable Whole House Carbon Water Filter by Tier1
  • 22070 Hydrologic Comparable Whole House Carbon Filter by Tier1

    22070 Hydrologic Comparable Whole House Carbon Filter by Tier1

    $87.99 MSRP: $105.99
    Save 17%
  • P-250 Pentek Comparable Under Sink Water Filter Set Tier1
  • D-250A Culligan Comparable Under Sink Water Filter Set by Tier1
  • P-250 Pentek Comparable Under Sink Water Filter Set by Tier1
  • P-250A Pentek Comparable Under Sink Filter Set by Tier1

    P-250A Pentek Comparable Under Sink Filter Set by Tier1

    $21.99 MSRP: $41.99
    Save 48%
  • WHKF-DB2 Whirlpool Comparable Under Sink Water Filter by Tier1
  • FQSVF / FQSLF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

Items 1 to 48 of 250 total

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