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

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Water Filtration Systems, Filters, & Parts

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 64 total

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  • WFCH2 DuPont Complete Home Water Filtration Kit

    WFCH2 DuPont Complete Home Water Filtration Kit

    $70.99
    MSRP: $98.77
    Save 28%
  • HAC-BB-20-W Harmsco Replacement Filter Cartridge

    HAC-BB-20-W Harmsco Replacement Filter Cartridge

    $70.99
    MSRP: $87.99
    Save 19%
  • Everpure H-54 Water Filter Replacement Cartridge (EV9730-06)
  • RFFE20-BB Pentek Iron Reducing Water Filter Cartridge (20 in x 4.5 in)
  • 4002575/GRO-75EN Pentair GPD Encapsulated Membrane

    4002575/GRO-75EN Pentair GPD Encapsulated Membrane

    $74.99
    MSRP: $92.99
    Save 19%
  • FMHC-90-5EZ Flow-Max Jumbo 90 Pleated Water Filter Cartridge - 5 Micron
  • S463RL Viqua Water Disinfection System UV Lamp

    S463RL Viqua Water Disinfection System UV Lamp

    $75.00
    MSRP: $97.99
    Save 23%
  • Aries AF-10-2054 Coconut Granular Activated Carbon

    Aries AF-10-2054 Coconut Granular Activated Carbon

    $75.99
    MSRP: $91.99
    Save 17%
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • Pentair HEPP10-20DB Pureflex Pleated Polypropylene Cartridge
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • W9361230 Doulton HCA Gravity Water Filter

    W9361230 Doulton HCA Gravity Water Filter

    $70.00
    MSRP: $145.99
    Save 52%
  • K00338 Manitowoc Arctic Pure Ice Maker Filter

    K00338 Manitowoc Arctic Pure Ice Maker Filter

    $70.69
    MSRP: $118.99
    Save 41%
  • TW30-1810-50 Tier1 Reverse Osmosis Membrane

    TW30-1810-50 Tier1 Reverse Osmosis Membrane

    $70.99
    MSRP: $88.54
    Save 20%
  • EV9300-15 Everpure proseries 1500 Replacement Filter Cartridge
  • 20743 Katadyn Replacement Ceramic Element

    20743 Katadyn Replacement Ceramic Element

    $72.39
    MSRP: $93.99
    Save 23%
  • 144839 Pentek Touch Flo Air Gap Drinking Water Faucet - Chrome
  • 1-100SS-F Rusco Spin-Down Water Filter System

    1-100SS-F Rusco Spin-Down Water Filter System

    $72.49
    MSRP: $90.84
    Save 20%
  • UVQS-1X 3M Aqua-Pure UV System Quartz Sleeve
  • XC2 Everpure Replacement Filter Cartridge

    XC2 Everpure Replacement Filter Cartridge

    $72.99
    MSRP: $86.24
    Save 15%
  • MG-10MCB Pentek MicroGuard Replacement Filter Cartridge

    MG-10MCB Pentek MicroGuard Replacement Filter Cartridge

    $72.99
    MSRP: $84.05
    Save 13%
  • W9330042 Doulton HIP Undersink Water Filtration System

    W9330042 Doulton HIP Undersink Water Filtration System

    $73.00
    MSRP: $107.99
    Save 32%
  • RUSCO-1-140SS-F
  • W9377010 Doulton Gravity Filter System
  • OAC-20BB Pentek Oil Reduction Filter

    OAC-20BB Pentek Oil Reduction Water Filter

    $73.99
    MSRP: $85.20
    Save 13%
  • ROM-26T Pentek Reverse Osmosis Membrane

    ROM-26T Pentek Reverse Osmosis Membrane

    $73.99
    MSRP: $84.05
    Save 12%
  • 01018468 Culligan Replacement Chrome Water Faucet
  • FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm
  • 8013629 Katadyn Camping Filter System
  • TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    TFM-75EB Desal Encapsulated Reverse Osmosis Membrane

    $74.99
    MSRP: $114.99
    Save 35%
  • 7CB5-S Everpure Replacement Filter Cartridge

    7CB5-S Everpure Replacement Filter Cartridge

    $75.99
    MSRP: $86.24
    Save 12%
  • BGE-4200S BevGuard Water Filter Cartridge

    BGE-4200S BevGuard Water Filter Cartridge

    $75.99
    MSRP: $94.99
    Save 20%
  • S463RL Sterilight Water Sterilizer System UV Lamp (254nm)
  • CBF1-S-05 OmniFilter Undersink Filter System

    CBF1-S-05 OmniFilter Undersink Water Filtration System

    $76.19
    MSRP: $101.99
    Save 25%
  • 3M Aqua-Pure AP815 Whole House Water Filter
  • FQROMF GE Profile SmartWater Ultra Plus Reverse Osmosis Membrane
  • FXSLC GE SmartSetWater Undersink Filter
  • 1-100ST-F Rusco Sediment Trapper System

    1-100ST-F Rusco Sediment Trapper System

    $76.99
    MSRP: $90.84
    Save 15%
  • CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    $77.00
    MSRP: $103.99
    Save 26%
  • CQE-RC-04051 Crystal Quest Arsenic Multi Replacement Filter Cartridge
  • CQE-RC-04003 Crystal Quest Multi Stage ULTRA Water Filter Cartridge
  • FX18M GE SmartWater Reverse Osmosis Membrane

    FX18M GE SmartWater Reverse Osmosis Membrane

    $77.09
    MSRP: $127.99
    Save 40%
  • H9655-11 Hoshizaki Replacement Filter Cartridge

    H9655-11 Hoshizaki Replacement Water Filter Cartridge

    $77.09
    MSRP: $94.99
    Save 19%
  • TQ56-50FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-50FC PuROTwist Reverse Osmosis Membrane

    $77.09
    MSRP: $113.99
    Save 32%
  • JY-RP SteriPEN Portable UV System
  • EV9612-56 Everpure MC2 Replacement Filter Cartridge

    EV9612-56 Everpure MC2 Replacement Filter Cartridge

    $77.99
    MSRP: $114.99
    Save 32%
  • 3/4-100-F Rusco Spin-Down Water Filter System

    3/4-100-F Rusco Spin-Down Water Filter System

    $77.99
    MSRP: $91.99
    Save 15%
  • H-100 Everpure Replacement Water Filter Cartridge EV9611-16

    H-100 Everpure Replacement Water Filter Cartridge EV9611-16

    $78.99
    MSRP: $96.00
    Save 18%

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