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 53 total

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  • C2-02 Advanced Water Products 20-inch x 4.5-inch Replacement Carbon Whole House Filter
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $49.99
    MSRP: $89.00
    Save 44%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)
  • Pentair HEPP10-40DB Pureflex High Efficiency

    Pentair HEPP10-40DB Pureflex High Efficiency

    $93.99
    MSRP: $113.99
    Save 18%
  • Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    $107.99
    MSRP: $130.99
    Save 18%
  • Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP12-20DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge

    $41.99
    MSRP: $52.99
    Save 21%
  • Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    $62.99
    MSRP: $77.99
    Save 19%
  • Pentair GF20-40BPPPDB Industrial Triflex Microfiberglass Cartridge
  • Pentair GF20-30BPPPDB Industrial Triflex Microfiberglass Cartridge
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (12-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • W9330005 Doulton 10 Inch Filter Housing

    W9330005 Doulton 10 Inch Filter Housing

    $59.00
    MSRP: $71.99
    Save 18%
  • W9380010 Doulton Two Stage Water Filter System

    W9380010 Doulton Two Stage Water Filter System

    $122.99
    MSRP: $146.99
    Save 16%
  • W9380040 Doulton Two Stage Duo Undersink Drinking Water System
  • Pentek 166142 Big White 20-inch x 4.5-inch Filter Housing

    Pentek 166142 Big White 20-inch x 4.5-inch Filter Housing

    $51.99
    MSRP: $65.54
    Save 21%
  • 42645 Brita AquaView AVFF-100 Faucet Filter System - White
  • GXULQ GE Undersink Filter System

    GXULQ GE Undersink Filter System

    $55.99
    MSRP: $70.14
    Save 20%
  • CQ-1000-MS Rainshowr Shower Filter System with Pro Massage - White
  • RS-502-MS Rainshowr Shower Filter System with Massage - White
  • HR5-WH Sprite Royale Handheld Shower Filter System - White

    HR5-WH Sprite Royale Shower Filter System: Handheld, White

    $42.99
    MSRP: $51.74
    Save 17%
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • BGE-4200 BevGuard Water Filter Replacement Cartridge

    BGE-4200 BevGuard Water Filter Replacement Cartridge

    $63.29
    MSRP: $86.99
    Save 27%
  • 1-100STSS-F Rusco Stainless Steel Sediment Trapper System

    1-100STSS-F Rusco Stainless Steel Sediment Trapper System

    $88.99
    MSRP: $104.64
    Save 15%
  • 1-140STSS-F Rusco Sediment Trapper System

    1-140STSS-F Rusco Sediment Trapper System

    $90.99
    MSRP: $106.94
    Save 15%
  • 100STSS-F Rusco Sediment Trapper System

    34-100STSS-F Rusco Sediment Trapper System

    $87.99
    MSRP: $103.49
    Save 15%
  • 1-30SS-F Rusco Spin-Down Water Filtration System

    1-30SS-F Rusco Spin-Down Water Filtration System

    $64.99
    MSRP: $77.04
    Save 16%
  • WHEERM Whirlpool UltraEase Reverse Osmosis Membrane

    WHEERM Whirlpool UltraEase Reverse Osmosis Membrane

    $58.99
    MSRP: $114.28
    Save 48%
  • 22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    22043 KDF Hydrologic Carbon Pre-Filter For Evolution-RO1000

    $45.99
    MSRP: $55.19
    Save 17%
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    $56.09
    MSRP: $94.99
    Save 41%
  • TFM-24-EB Desal Reverse Osmosis Membrane

    TFM-24-EB Desal Reverse Osmosis Membrane

    $56.09
    MSRP: $83.99
    Save 33%
  • TFM-18-EB Desal Reverse Osmosis Membrane

    TFM-18-EB Desal Reverse Osmosis Membrane

    $63.29
    MSRP: $81.99
    Save 23%
  • TQ56-15FC PuROTwist Reverse Osmosis Membrane

    TQ56-15FC PuROTwist Reverse Osmosis Membrane

    $68.69
    MSRP: $89.99
    Save 24%
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99
    MSRP: $59.79
    Save 20%
  • W9330059 Doulton Undersink Water Filtration System

    W9330059 Doulton HIP Undersink Water Filtration System

    $94.00
    MSRP: $167.99
    Save 44%
  • US-UF3 Culligan Ultrafiltration Drinking Water System
  • US-UF3R Culligan Ultrafiltration Replacement Water Filter Cartridge Set
  • H2O+ Brondell Cypress Countertop Water Filtration System (#H630)
  • CQE-CT-00132 Crystal Quest Countertop Fluoride Water Filter: Double Fluoride PLUS
  • CQE-RC-04006 Crystal Quest Fluoride Water Filter

    CQE-RC-04006 Crystal Quest Fluoride Water Filter

    $47.99
    MSRP: $63.24
    Save 24%
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge
  • FM-BB-20-1A Watts Pleated Water Filter Cartridge
  • CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System
  • CTW-10-WF Tier1 Countertop Water Filter System

Items 1 to 48 of 53 total

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