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 264 total

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  • W9125010 Doulton Specialty Replacement Filter Cartridge
  • 603053 Viqua Bottom Sleeve Bolt

    603053 Viqua Bottom Sleeve Bolt

    $30.99
    MSRP: $33.34
    Save 7%
  • Everpure EV9720-06 Comparable Food Service Replacement Filter by Tier1
  • EV9601-00 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9600-00 Everpure Comparable Food Service Replacement Filter by Tier1
  • EV9720-06 Everpure Comparable Food Service Replacement Filter by Tier1
  • ELF-1M Omnipure Comparable Food Service Replacement Filter by Tier1
  • ELF-1ML Omnipure Comparable Food Service Replacement Filter by Tier1
  • WFPF13003B DuPont Universal Whole House Filtration System
  • AF-10-2011 Aries Specialty Cartridge 10-inch x 2.5-inch 1 LBS KDF/GAC
  • Garnet-812 Watts Water Treatment Media #8-12

    Garnet-812 Watts Water Treatment Media #8-12

    $31.99
    MSRP: $40.99
    Save 22%
  • Tier1 TROM-24 RO Membrane
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • NCP-BB Pentek Whole House Water Filter

    NCP-BB Pentek Whole House Filter Replacement Cartridge

    $32.99 MSRP: $36.34
    Save 9%
  • Everpure EV9617-36 Comparable Food Service Replacement Filter by Tier1
  • EV9617-36 Everpure Comparable Food Service Replacement Filter by Tier1
  • ELF-5M-KDF-P Omnupure Comparable Food Service Replacement Filter by Tier1
  • OB1-S-S06 OmniFilter Undersink Water Filter System
  • WFDWC70001 DuPont Universal Drinking Water Carbon Block Cartridge
  • Everpure H-300 comparable granular activated carbon filter by Tier1
  • EV9270-72 Everpure Comparable Granular Activated Carbon Filter by Tier1
  • EV9270-71 Everpure Comparable Granular Activated Carbon Filter by Tier1
  • ELF-1M-P-KDF Omnipure comparable granular activated carbon filter by Tier1
  • W9222900 Doulton Ceramic Water Filter
  • NCP-20BB Pentek Whole House Filter Replacement

    NCP-20BB Pentek Whole House Filter Replacement Cartridge

    $34.99 MSRP: $48.81
    Save 28%
  • 35475 Brita Grand Pitcher (Violet) 10 Cups
  • QS-463 Viqua Quartz Sleeve for S463RL UV Lamp

    QS-463 Viqua Quartz Sleeve for S463RL UV Lamp

    $35.00
    MSRP: $45.00
    Save 22%
  • TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    $35.99
    MSRP: $45.99
    Save 22%
  • Seychelle-1-40100-2 Dual Replacement Filters

    Seychelle-1-40100-2 Dual Replacement Filters

    $35.99
    MSRP: $44.95
    Save 20%
  • TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    TFM-18 Desal Compatible Reverse Osmosis Membrane by Tier1

    $35.99 MSRP: $45.99
    Save 22%
  • ROM-100 Campbell Comparable Reverse Osmosis Membrane by Tier1
  • RF-63 Honeywell Comparable Reverse Osmosis Membrane by Tier1
  • Triton Water Filters Replacement Color Changing Di Cartridge Hydrologic 22016
  • TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    $36.99
    MSRP: $49.99
    Save 26%
  • 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%
  • WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • FQSVF / FQSLF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1
  • FQK2J GE SmartWater Undersink Water Filter Replacement Cartridge Set by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

    $36.99 MSRP: $48.99
    Save 24%
  • BRITA-SOHO-PITCHER

    Brita SOHO Pitcher White

    $36.99
  • TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Desal Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    FX12M GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    TFM-36 Axeon Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TW30-1812-36 Filmtec Comparable Reverse Osmosis Membrane by Tier1
  • MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    MEM-45 APEC Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    AG1812TAE GE Comparable Reverse Osmosis Membrane by Tier1

    $36.99 MSRP: $49.99
    Save 26%
  • TLC-36 Pentair Comparable Reverse Osmosis Membrane by Tier1

Items 1 to 48 of 264 total

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