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

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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.

43 Item(s)

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  • 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%
  • ARIES-AF-10-2010

    ARIES-AF-10-2010

    $16.99
  • CULLIGAN-D-25

    CULLIGAN-D-25

    $11.99
  • DuPont WFROM1000X Quick Twist Reverse Osmosis Membrane
  • AF-10-1053 Aries Specialty Cartridge Hydrogen Sulfide Removal
  • AF-10-2011 Aries Specialty Cartridge 10-inch x 2.5-inch 1 LBS KDF/GAC
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99
    MSRP: $27.99
    Save 14%
  • Aries AF-10-2115 KDF/Granular Activated Carbon

    Aries AF-10-2115 KDF/Granular Activated Carbon

    $39.99
    MSRP: $49.00
    Save 18%
  • APS117 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier1
  • D-20 Culligan Comparable Whole House Carbon Water Filter by Tier1
  • CFS117 Cuno Comparable Whole House Sediment Water Filter by Tier1
  • HDG-P117 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • AMERICAN-PLUMBER-WCC

    AMERICAN-PLUMBER-WCC

    $19.99
  • AQUAPURE-AP117

    AQUAPURE-AP117

    $28.99
    MSRP: $36.67
    Save 21%
  • AQUAPURE-AP117RO

    AQUAPURE-AP117RO

    $23.99
    MSRP: $30.23
    Save 21%
  • AQUAPURE-APS117

    AQUAPURE-APS117

    $33.99
    MSRP: $40.81
    Save 17%
  • CULLIGAN-D-20

    CULLIGAN-D-20

    $14.99
  • CULLIGAN-D-250A

    CULLIGAN-D-250A

    $30.99
    MSRP: $39.09
    Save 21%
  • D-28 Culligan Level 1 Undersink Filter Replacement Cartridge
  • RV-600A Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • CFS117-S Cuno Whole House Filter Replacement Cartridge

    CFS117-S Cuno Whole House Filter Replacement Cartridge

    $32.05
    MSRP: $40.24
    Save 20%
  • EV9100-08 Everpure IN-10 Inline Filter with 3/8 inch NPT threads

    EV9100-08 Everpure IN-10 Inline Water Filter

    $20.99
    MSRP: $33.34
    Save 37%
  • FX12P

    FX12P

    $58.99
    MSRP: $71.29
    Save 17%
  • GAC1SS

    GAC1SS

    $16.99
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $12.99
    MSRP: $17.99
    Save 28%
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $11.99
    MSRP: $15.28
    Save 22%
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99
    MSRP: $24.60
    Save 15%
  • UDS-10EX1 Pentek Whole House Filter Replacement Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    $10.99
    MSRP: $20.34
    Save 46%
  • MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-CTO2-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-Pb1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • K5567BB Omnipure Inline Filter Replacement Cartridge

    K5567BB Omnipure Inline Filter Replacement Cartridge

    $18.79
    MSRP: $23.91
    Save 21%
  • K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

    $20.05
    MSRP: $26.44
    Save 24%
  • K5586-JJ Omnipure Inline Phosphate Filter

    K5586-JJ Omnipure Inline Phosphate Filter

    $14.99
    MSRP: $19.54
    Save 23%
  • Q5528 Omnipure Replacement Filter Cartridge

    Q5528 Omnipure Replacement Filter Cartridge

    $13.99
    MSRP: $17.24
    Save 19%
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    $18.99
    MSRP: $21.95
    Save 13%
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $14.99
    MSRP: $15.34
    Save 2%
  • HYDRONIX-HDG-P117

    HYDRONIX-HDG-P117

    $17.99
  • AP117 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1

43 Item(s)

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