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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.

Items 1 to 48 of 111 total

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  • AMERICAN-PLUMBER-600R

    AMERICAN-PLUMBER-600R

    $31.99 Retail Price:  $35.06
  • WCC American Plumber Undersink Filter Replacement Cartridge
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99 Retail Price:  $58.34
  • 3M Aqua-Pure AP-C78 Water Filter Replacement Cartridge
  • AP-DW80/90 3M Aqua-Pure Water Filter Set

    AP-DW80/90 3M Aqua-Pure Pre and Post Filter Set

    $116.99 Retail Price:  $198.46
  • AQUAPURE-APIL3R

    AQUAPURE-APIL3R

    $40.99 Retail Price:  $45.41
  • AQUAPURE-C-COMPLETE

    AQUAPURE-C-COMPLETE

    $66.99 Retail Price:  $88.54
  • AQUAPURE-C-CS-S

    AQUAPURE-C-CS-S

    $37.99 Retail Price:  $42.54
  • C-LC 3M Aqua-Pure Undersink Water Filter

    C-LC 3M Aqua-Pure Undersink Water Filter Cartridge

    $50.99 Retail Price:  $65.54
  • CQE-RC-04049 Crystal Quest Fluoride Multi Replacement Filter Cartridge
  • 01013029 Culligan Reverse Osmosis Filter Cartridge
  • CULLIGAN-1000R-D

    CULLIGAN-1000R-D

    $28.99
  • D-250A Culligan Undersink Filter Replacement Cartridge Set
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • IC-1000 Culligan Inline Filter
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • IC-EZ-4 Culligan Level 4 Easy-Change Inline Filter System
  • CULLIGAN-RC-EZ-3

    CULLIGAN-RC-EZ-3

    $24.99 Retail Price:  $31.04
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • RV-EZ-3 Culligan Level 3 Easy-Change RV Inline Filter System
  • SY-1000 Culligan Water Filtration System
  • US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  • CULLIGAN-US-EZ-4

    CULLIGAN-US-EZ-4

    $77.99 Retail Price:  $86.24
  • DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    $28.99 Retail Price:  $31.34
  • DOULTON-W9121020

    DOULTON-W9121020

    $25.99 Retail Price:  $36.02
  • W9121200 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121715 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9123019 Doulton UltraCarb SI Replacement Element

    W9123019 Doulton UltraCarb SI Ceramic Filter Candle

    $55.81 Retail Price:  $66.48
  • W9223002 Doulton Replacement Ceramic Filter

    W9223002 Doulton Slimline Replacement Ceramic Filter

    $53.99 Retail Price:  $60.87
  • W9223026 Doulton Replacement Ceramic Filter
  • W9330957 Doulton UltraCarb Undersink Ceramic Candle Filter System
  • W9331032 Doulton UltraCarb Countertop Filter System

    W9331032 Doulton HCP UltraCarb Countertop Filter System

    $135.99 Retail Price:  $158.65
  • W9361122 Doulton Countertop Filter System

    W9361122 Doulton SS2 Countertop Filter System

    $199.97 Retail Price:  $232.27
  • W9377001 Doulton Gravity Filter System
  • EV9300-15 Everpure proseries 1500 Replacement Filter Cartridge
  • EV9592-06 Everpure ADC RV and Marine Water Filter Replacement Cartridge
  • EV9607-25 Everpure ESO 7 Softening System Replacement Cartridge
  • EV9720-06 Everpure S-54 Replacement Filter Cartridge

    EV9634-26 Everpure S-54 Water Filter Cartridge

    $59.99 Retail Price:  $71.29
  • THM-1 Everpure Replacement Filter Cartridge

    THM-1 Everpure Replacement Filter Cartridge

    $103.05 Retail Price:  $157.54
  • THM-2 Everpure Replacement Filter Cartridge

    THM-2 Everpure Replacement Filter Cartridge

    $86.99 Retail Price:  $106.94
  • 4US-MAXL-F01 Filtrete Replacement Filter Cartridge
  • 4US-MAXL-S01 Filtrete Single Stage Drinking Water System
  • 4US-MAXS-F01 Filtrete Replacement Filter Cartridge

    4US-MAXS-F01 3M Filtrete Water Filter Cartridge

    $20.99 Retail Price:  $25.29
  • 4US-MAXS-S01 Filtrete Single Stage Drinking Water System
  • FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Filter Set
  • FX12M

    FX12M

    $58.99 Retail Price:  $71.29

Items 1 to 48 of 111 total

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