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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!
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  • 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 1 to 48 of 124 total

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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 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
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 Retail Price:  $101.19
  • 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

    $14.99 Retail Price:  $18.39
  • GXSM01HWW GE Shower Filter System

    GXSM01HWW GE Shower Filter System

    $42.99 Retail Price:  $45.34
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99 Retail Price:  $11.49
  • H9655-11 Hoshizaki Replacement Filter Cartridge

    H9655-11 Hoshizaki Replacement Water Filter Cartridge

    $72.99 Retail Price:  $89.69
  • CB-25-2010 Hydronix Replacement Filter Cartridge

    CB-25-2010 Hydronix Replacement Filter Cartridge

    $14.99 Retail Price:  $17.34
  • MATRIKX-1-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • FLOPLUS-20BB Pentek Replacement Filter Cartridge

    FLOPLUS-20BB Pentek Replacement Filter Cartridge

    $61.99 Retail Price:  $80.49
  • NCP-10 Pentek Undersink Filter Replacement Cartridge

    NCP-10 Pentek Undersink Filter Replacement Cartridge

    $9.99 Retail Price:  $11.95
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99 Retail Price:  $26.44
  • SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  • SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • Bernoulli-BB Rainshowr Bernoulli Water Saving Power Shower Head - Brushed Brass
  • Bernoulli-PC Rainshowr Bernoulli Water Saving Power Shower Head - Polished Chrome
  • HHMS Rainshowr Handheld Shower Filter System with Massage
  • 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

    FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm

    Regular Price: $74.05

    Special Price: $64.05

  • HH-CT Sprite Original Handheld Shower Filter System - White / Chrome
  • HR5-CM Sprite Royale Handheld Shower Filter System - Chrome
  • HR5-WH Sprite Royale Handheld Shower Filter System - White
  • 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

    $69.95 Retail Price:  $82.74
  • MATRIKX-5-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge

Items 1 to 48 of 124 total

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