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

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.

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  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    3M Aqua-Pure AP117 Whole House Filter Replacement Cartridge

    $28.99
    MSRP: $54.13
    Save 46%
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge
  • 42622 Brita On-Tap FF-100 Faucet Filter System - Chrome
  • 42617 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome
  • 42618 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome (2-Pack)
  • 42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White
  • 42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)
  • HSH-C135 Culligan Handheld Filtered Shower Head with Massage
  • WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge
  • WSH-C125 Culligan Filtered Shower Head with Massage Feature

    WSH-C125 Culligan Filtered Shower Head with Massage Feature

    $34.99
    MSRP: $39.66
    Save 12%
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99
    MSRP: $101.19
    Save 5%
  • FXHSC GE SmartWater Whole House Filter Replacement Cartridge
  • FXHTC GE SmartWater Whole House Filter Replacement Cartridge
  • FXWTC GE SmartWater Whole House Filter Replacement Cartridge
  • FXSCH GE Shower Replacement Filter Cartridge

    FXSCH GE Shower Replacement Filter Cartridge

    $15.99
    MSRP: $27.99
    Save 43%
  • GXSM01HWW GE Shower Filter System

    GXSM01HWW GE Shower Filter System

    $45.99
    MSRP: $67.99
    Save 32%
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • H9655-11 Hoshizaki Replacement Filter Cartridge

    H9655-11 Hoshizaki Replacement Water Filter Cartridge

    $77.09
    MSRP: $94.99
    Save 19%
  • CB-25-2010 Hydronix Replacement Filter Cartridge

    CB-25-2010 Hydronix Replacement Filter Cartridge

    $15.69
    MSRP: $23.99
    Save 35%
  • MATRIKX-1-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • FLOPLUS-20BB Pentek Replacement Filter Cartridge

    FLOPLUS-20BB Pentek Replacement Filter Cartridge

    $78.99
    MSRP: $95.99
    Save 18%
  • NCP-10 Pentek Undersink Filter Replacement Cartridge

    NCP-10 Pentek Undersink Filter Replacement Cartridge

    $10.29
    MSRP: $15.99
    Save 36%
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99
    MSRP: $26.44
    Save 9%
  • SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing

    SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing

    $12.99
    MSRP: $17.24
    Save 25%
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    $12.39
    MSRP: $16.55
    Save 25%
  • SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • Bernoulli-BB Rainshowr Bernoulli Water Saving Power Shower Head - Brushed Brass
  • Bernoulli-BN Rainshowr Bernoulli Water Saving Power Shower Head - Brushed Nickel
  • Bernoulli-CB Rainshowr Bernoulli Water Saving Power Shower Head - Chrome Brass
  • Bernoulli-PB Rainshowr Bernoulli Water Saving Power Shower Head - Polished Brass
  • Bernoulli-PC Rainshowr Bernoulli Water Saving Power Shower Head - Polished Chrome
  • HHMS Rainshowr Handheld Shower Filter System with Massage

    HHMS Rainshowr Handheld Shower Filter System with Massage

    $27.99
    MSRP: $34.49
    Save 19%
  • AR5-CM Sprite Royale Filtered Shower Head - Chrome
  • AR5-CT Sprite Royale Filtered Shower Head - White / Chrome
  • FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm
  • HH-CT Sprite Original Handheld Shower Filter System - White / Chrome
  • HR5-CM Sprite Royale Handheld Shower Filter System - Chrome

    HR5-CM Sprite Royale Handheld Shower Filter System - Chrome

    $49.99
    MSRP: $59.79
    Save 16%
  • 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%
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • 85470 Inline Water Filters Washing Machine Inline Water Filter
  • 20743 Katadyn Replacement Ceramic Element

    20743 Katadyn Replacement Ceramic Element

    $72.39
    MSRP: $93.99
    Save 23%
  • MATRIKX-5-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge

Items 1 to 48 of 146 total

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