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 76 total

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  • 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    $36.99
    MSRP: $56.39
    Save 34%
  • TIER1-GAC-10 Pentek Undersink Replacement Cartridge by Tier1
  • STERILIGHT-FRSS-1.5
  • HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    $13.99
    MSRP: $19.99
    Save 30%
  • FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    FRSS-1.5 Viqua 1.5 GPM 1/2-inch Flow Restrictor

    $52.99
    MSRP: $90.00
    Save 41%
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    $8.49 MSRP: $11.49
    Save 26%
  • CBC-10 Pentek Replacement Water Filter
  • Everpure EV9617-21 Comparable Food Service Replacement Filter by Tier1
  • D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1
  • D-25 Culligan Comparable Undersink Replacement Cartridge by Tier1
  • WCC Amercian Plumber Comparable Undersink Replacement Cartridge by Tier1
  • CC-10 Pentek Comparable Undersink Replacement Cartridge by Tier1
  • EV9612-50 Comparable Food Service Replacement Filter by Tier1
  • EV9612-51 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9612-00 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9612-55 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV3107-51 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9617-21 Everpure Comparable Food Service Replacement Filter by Tier1
  • ELF-5M-P-SB Omnipure Comparable Food Service Replacement Filter by Tier1
  • 4621-12 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-31 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • CFS9710-S Cuno Comparable Food Service Replacement Filter by Tier1
  • FL4S Follett Comparable Food Service Replacement Filter by Tier1
  • 130245 Follett Comparable Food Service Replacement Filter by Tier1
  • 954297 Follett Comparable Food Service Replacement Filter by Tier1
  • Pentek CFB-PB10 Lead & Cyst Carbon Filter

    Pentek CFB-PB10 Lead & Cyst Carbon Filter

    $13.99
    MSRP: $17.12
    Save 18%
  • Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    $22.99
    MSRP: $24.71
    Save 7%
  • W5CIP478 American Plumber Undersink Compact Filter Replacement Cartridge (2-Pack)
  • WCC American Plumber Undersink Filter Replacement Cartridge

    WCC American Plumber Undersink Filter Replacement Cartridge

    $19.99
    MSRP: $26.44
    Save 24%
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • CB1 OmniFilter Undersink Filter Replacement Cartridge

    CB1-SS6-S06 OmniFilter Undersink Water Filter Cartridge

    $34.99
    MSRP: $47.99
    Save 27%
  • NCP-10 Culligan Whole House Filter Replacement Cartridge
  • RV-500A Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • RV-600A Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • CULLIGAN-RV-700

    CULLIGAN-RV-700

    $20.99
    MSRP: $35.64
    Save 41%
  • CULLIGAN-RV-800

    CULLIGAN-RV-800

    $29.79
    MSRP: $38.51
    Save 23%
  • CULLIGAN-RVF-10

    CULLIGAN-RVF-10

    $34.99
    MSRP: $38.51
    Save 9%
  • US-600 Culligan Slim Undersink Filter System

    US-600 Culligan Slim Undersink Filter System

    $35.99
    MSRP: $41.39
    Save 13%
  • CFS517 Cuno Whole House Filter Replacement Cartridge

    CFS517 Cuno Whole House Filter Replacement Cartridge

    $76.99
    MSRP: $87.39
    Save 12%
  • CS-11 Cuno Replacement Filter Cartridge

    CS-11 Cuno Replacement Filter Cartridge

    $61.29
    MSRP: $81.99
    Save 25%
  • HF10-MS Cuno Whole House Filter Replacement Cartridge

    HF10-MS Cuno Whole House Filter Replacement Cartridge

    $65.99
    MSRP: $68.30
    Save 3%
  • 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%

Items 1 to 48 of 76 total

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