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When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 49 to 96 of 207 total

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  • HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    $50.05
    MSRP: $80.49
    Save 38%
  • HF20-MS Cuno Whole House Filter Replacement Cartridge

    HF20-MS Cuno Whole House Filter Replacement Cartridge

    $71.99
    MSRP: $73.36
    Save 2%
  • HF20-S Cuno Whole House Filter Replacement Cartridge

    HF20-S Cuno Whole House Filter Replacement Cartridge

    $68.99
    MSRP: $86.24
    Save 20%
  • W9120145 Doulton Replacement Candle Set (6-Pack)

    W9120145 Doulton Replacement Candle Set (6-Pack)

    $104.99
    MSRP: $118.30
    Save 11%
  • W9120562 Doulton Sterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121020 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121200 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121214 Doulton ATC Super Sterasyl Replacement Element
  • W9121715 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9122021 Doulton SuperCarb Replacement Element
  • W9122190 Doulton SuperCarb SI Replacement Element

    W9122190 Doulton SuperCarb SI Ceramic Water Filter

    $50.36
    MSRP: $60.21
    Save 16%
  • W9123019 Doulton UltraCarb SI Replacement Element

    W9123019 Doulton UltraCarb SI Ceramic Filter Candle

    $55.81
    MSRP: $66.48
    Save 16%
  • W9125030 Doulton Specialty Replacement Filter Cartridge
  • W9142010 Doulton Replacement Ceramic Filter

    W9142010 Doulton Replacement Ceramic Filter

    $15.99
    MSRP: $18.39
    Save 13%
  • W9223002 Doulton Replacement Ceramic Filter

    W9223002 Doulton Slimline Replacement Ceramic Filter

    $53.99
    MSRP: $60.87
    Save 11%
  • W9223026 Doulton Replacement Ceramic Filter
  • W9330957 Doulton UltraCarb Undersink Ceramic Candle Filter System
  • W9330962 Doulton Sterasyl Undersink Ceramic Candle Filter System
  • W9331032 Doulton UltraCarb Countertop Filter System

    W9331032 Doulton HCP UltraCarb Countertop Filter System

    $135.99
    MSRP: $158.65
    Save 14%
  • W9361122 Doulton Countertop Filter System

    W9361122 Doulton SS2 Countertop Filter System

    $199.97
    MSRP: $232.27
    Save 14%
  • W9377001 Doulton Gravity Filter System
  • W9381000 Doulton High Flow Multi Candle Filter Module

    W9381000 Doulton High Flow Multi Candle Filter Module

    $140.99
    MSRP: $158.36
    Save 11%
  • W9381100 Doulton Whole House Filter System
  • W9381101 Doulton Whole House Filter System
  • W9381105 Doulton RIO 2000 Ceramic Multi-Candle Filter Cartridge
  • BH-2 Everpure Replacement Filter Cartridge

    BH-2 Everpure Replacement Filter Cartridge

    $53.99
    MSRP: $70.14
    Save 23%
  • EV9275-70 Everpure QL2-OW200L Filter System

    EV9275-70 Everpure QL2-OW200L Filter System

    $70.05
    MSRP: $124.19
    Save 44%
  • EV9300-15 Everpure proseries 1500 Replacement Filter Cartridge
  • EV9300-25 Everpure proseries 2500 Replacement Filter Cartridge
  • EV9300-35 Everpure proseries 3500 Replacement Filter Cartridge
  • EV9324-01 Everpure Ice Machine Filter System

    EV9324-01 Everpure Ice Machine Filter System

    $218.99
    MSRP: $273.69
    Save 20%
  • EV9324-02 Everpure Ice Machine Filter System

    EV9324-02 Everpure Ice Machine Filter System

    $376.99
    MSRP: $450.79
    Save 16%
  • EV9592-06 Everpure ADC RV and Marine Water Filter Replacement Cartridge
  • EV9601-00 Everpure 4C Replacement Filter Cartridge

    EV9601-00 Everpure 4C Replacement Filter Cartridge

    $41.99
    MSRP: $45.99
    Save 9%
  • EV9611-00 Everpure 4H Replacement Filter Cartridge

    EV9611-00 Everpure 4H Replacement Filter Cartridge

    $47.99
    MSRP: $57.49
    Save 17%
  • EV9612-56 Everpure MC2 Replacement Filter Cartridge

    EV9612-56 Everpure MC2 Replacement Filter Cartridge

    $77.99
    MSRP: $98.70
    Save 21%
  • EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    $52.99
    MSRP: $59.79
    Save 11%
  • EV9618-02 Everpure OCS2 Replacement Filter Cartridge

    EV9618-02 Everpure OCS2 Replacement Filter Cartridge

    $49.95
    MSRP: $59.74
    Save 16%
  • EV9619-06 Everpure OW200L Replacement Filter Cartridge

    EV9619-06 Everpure OW200L Replacement Filter Cartridge

    $81.00
    MSRP: $95.45
    Save 15%
  • EV9634-01 Everpure OW2 Plus Replacement Filter Cartridge
  • EV9635-01 Everpure OW4-Plus Replacement Filter Cartridge
  • EV9720-06 Everpure S-54 Replacement Filter Cartridge

    EV9634-26 Everpure S-54 Water Filter Cartridge

    $59.99
    MSRP: $71.29
    Save 16%
  • i20002 Everpure Replacement Filter Cartridge

    Everpure i2000(2) Replacement Filter Cartridge

    $74.99
    MSRP: $111.00
    Save 32%
  • i40002 Everpure Replacement Filter Cartridge

    Everpure i4000(2) Replacement Water Filter Cartridge

    $88.99
    MSRP: $100.04
    Save 11%
  • Quad-MC2 Everpure Replacement Filter Cartridge Kit
  • THM-2 Everpure Replacement Filter Cartridge

    THM-2 Everpure Replacement Filter Cartridge

    $86.99
    MSRP: $106.94
    Save 19%
  • XC2 Everpure Replacement Filter Cartridge

    XC2 Everpure Replacement Filter Cartridge

    $72.99
    MSRP: $86.24
    Save 15%

Items 49 to 96 of 207 total

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