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 86 total

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  • F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • OMNIPURE-K5520SS

    OMNIPURE-K5520SS

    $21.09
    MSRP: $27.59
    Save 24%
  • PENTEK-255579-43

    PENTEK-255579-43

    $14.29
    MSRP: $18.99
    Save 25%
  • DUPONT-WFQTC90001
  • OMNIPURE-K5666-KK

    OMNIPURE-K5666-KK

    $39.59
    MSRP: $50.99
    Save 22%
  • K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    $11.99
    MSRP: $17.99
    Save 33%
  • IC-100-D Culligan Comparable Inline Water Filter by Tier1

    IC-100-D Culligan Comparable Inline Water Filter by Tier1

    $8.99 MSRP: $10.34
    Save 13%
  • K2333-KK Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  • K2533-KK Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  • K5633JJ Omnipure Inline Coconut Carbon Water Filter Replacement by Tier1
  • K2528-KK Omnipure Comparable Inline Coconut Carbon Water Filter Tier1
  • FQK2J GE Undersink Water Filter Set
  • AMERICAN-PLUMBER-WIC-6A
  • WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • AQUAPURE-APIL3R

    AQUAPURE-APIL3R

  • IC-100A Culligan Level 1 Disposable Inline Filter

    IC-100A Culligan Level 1 Disposable Inline Filter

    $12.99
    MSRP: $16.78
    Save 23%
  • RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • US-600 Culligan Slim Undersink Filter System

    US-600 Culligan Slim Undersink Filter System

    $35.99
    MSRP: $41.39
    Save 13%
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $37.99
    MSRP: $54.99
    Save 31%
  • HF20-S Cuno Whole House Filter Replacement Cartridge

    HF20-S Cuno Whole House Filter Replacement Cartridge

    $68.99
    MSRP: $86.24
    Save 20%
  • DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    $31.89
    MSRP: $40.99
    Save 22%
  • GS-10RO-H-38 Desal Reverse Osmosis Carbon Post Filter

    GS-10RO-H-38 Desal Reverse Osmosis Carbon Post Filter

    $18.99
    MSRP: $27.99
    Save 32%
  • DESAL-TFM-50EB

    DESAL-TFM-50EB

  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $52.79
    MSRP: $114.99
    Save 54%
  • TLC-150EB Desal Encapsulated Reverse Osmosis Membrane
  • EV9256-20 Everpure QL1 Single Filter Head with Bracket and 1/4 inch Quick-Connect Fittings

    EV9256-20 Everpure QL1 Single Water Filter Head

    $36.49
    MSRP: $52.99
    Save 31%
  • GXRLQ

    GXRLQ

    $37.59
  • GXRLQR

    GXRLQR

    $36.49
  • GXRTDR

    GXRTDR

    $20.99
    MSRP: $24.19
    Save 13%
  • ICF-10Q Hydronix Inline Coconut Carbon Filter

    ICF-10Q Hydronix Inline Coconut Carbon Filter

    $7.79
    MSRP: $15.99
    Save 51%
  • HYDRONIX-ICF-10Q38

    HYDRONIX-ICF-10Q38

    $9.89
    MSRP: $11.49
    Save 14%
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99
    MSRP: $10.34
    Save 32%
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99
    MSRP: $15.28
    Save 15%
  • GS-10ALS-JG14 Pentek Inline Filter System

    GS-10ALS-JG14 Pentek Inline Water Filter

    $14.69
    MSRP: $21.99
    Save 33%
  • R200 OmniFilter Inline Filter System

    R200 OmniFilter Inline Water Filtration System

    $14.99
    MSRP: $16.09
    Save 7%
  • WHIRLPOOL-WHKF-IMPLUS
  • WHKF-IMTO Whirlpool Inline Filter

    WHKF-IMTO Whirlpool Inline Filter

    $11.99
    MSRP: $14.94
    Save 20%
  • GXRTQ GE SmartWater Inline Filter System
  • 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%
  • OMNIFILTER-R800

    OMNIFILTER-R800

  • SFM2 OmniFilter Undersink Water Filter System

    USM2-S-S06 OmniFilter Undersink Water Filtration System

    $35.99
    MSRP: $48.29
    Save 25%
  • U30 OmniFilter Whole House Water Filter System

    U30 OmniFilter Whole House Water Filtration System

    $68.99
    MSRP: $81.64
    Save 15%
  • OMNIPURE-ELF-NV-HEAD-DK7-P6

    OMNIPURE-ELF-NV-HEAD-DK7-P6

    $14.29
    MSRP: $17.24
    Save 17%
  • OMNIPURE-K2333-JJ

    OMNIPURE-K2333-JJ

    $12.19
    MSRP: $13.79
    Save 12%
  • K2333-KK Omnipure Inline Filter

    K2333-KK Omnipure Inline Filter

    $14.29
    MSRP: $19.99
    Save 29%

Items 1 to 48 of 86 total

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