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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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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 143 total

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  • CW-MF Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • 35430 Brita Grand Pitcher Orange

    35430 Brita Grand Pitcher Orange

    $41.99 Retail Price:  $45.99
  • Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge
  • 200362 Axeon TF-1812-150 Residential Reverse Osmosis Membrane
  • EPM-20BB Pentek Whole House Filter Cartridge
  • BW60-1812-75 Filmtec Reverse Osmosis Membrane

    BW60-1812-75 Filmtec Reverse Osmosis Membrane

    $44.99 Retail Price:  $47.34
  • DuPont WFFS150XCH Chrome Counter Top Faucet System

    DuPont WFFS150XCH Chrome Counter Top Faucet System

    $44.99 Retail Price:  $71.99
  • GAC20-BB Pentek Whole House Water Filter
  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    As Low As $40.50 Per Filter

  • 602733 Viqua Quartz Sleeve for 602806 UV Lamp

    602733 Viqua Quartz Sleeve for 602806 UV Lamp

    $48.99 Retail Price:  $64.00
  • Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge
  • Katadyn 8018342 MyBottle Microfilter Red Splash

    Katadyn 8018342 MyBottle Microfilter Red Splash

    $40.99 Retail Price:  $59.79
  • 10-212 Pentek UV Lamp

    10-212 Pentek UV Lamp

    $47.99 Retail Price:  $67.38
  • Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    $47.99 Retail Price:  $50.34
  • 67300 Aquamira Home Emergency Drinking Water Kit
  • APHOSF-RC 3M Aqua-Pure High-Output Shower Filter Cartridge
  • 3M Aqua-Pure APIL3R Inline Water Filter

    APIL3R 3M Aqua-Pure Inline Water Filter Cartridge

    $40.99 Retail Price:  $45.41
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • EV9608-10 Everpure 2JT Flushing and Sanitizing Cartridge

    EV9608-10 Everpure 2JT Flushing and Sanitizing Cartridge

    $40.99 Retail Price:  $49.44
  • FXHTC GE SmartWater Whole House Filter Replacement Cartridge
  • VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  • 47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • MATRIKX-5-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 3M Aqua-Pure AP110-3C Whole House Water Filter

    AP110-3C 3M Aqua-Pure Water Filter Cartridge

    $40.99 Retail Price:  $49.44
  • 9602 Moen Replacement Filter Cartridge for ChoiceFlo Faucet Systems
  • RS-502-MS Rainshowr Shower Filter System with Massage - White
  • HFPP-112-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • 3M Aqua-Pure APLPSF-PC Low Profile Shower Filter - Chrome
  • 42632 Brita Chrome SMART OB39 64-Ounce Water Pitcher
  • CTA-16 Desal Reverse Osmosis Membrane

    CTA-16 Desal Reverse Osmosis Membrane

    $41.99 Retail Price:  $50.59
  • EV9601-00 Everpure 4C Replacement Filter Cartridge

    EV9601-00 Everpure 4C Replacement Filter Cartridge

    $41.99 Retail Price:  $45.99
  • TW30-1812-36 Filmtec Reverse Osmosis Membrane

    TW30-1812-36 Filmtec Reverse Osmosis Membrane

    $41.99 Retail Price:  $48.29
  • 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99 Retail Price:  $50.59
  • GXULQR GE Undersink Water Filter Replacement Cartridge
  • HFPP-34-PR-10 Pentek Big Blue Whole House 10 inch Filter Housing
  • PCC-1 Pentek Undersink Filter Replacement Cartridge

    PCC-1 Pentek Undersink Filter Replacement Cartridge

    $41.99 Retail Price:  $53.23
  • QMP602 QMP Countertop Water Filter System

    QMP602 QMP Countertop Filter System

    $41.99 Retail Price:  $45.99
  • 01007402 Culligan Reverse Osmosis Membrane
  • AE7-CM Sprite Shower Pure 7 Filtered Shower Head (Chrome)
  • GXSM01HWW GE Shower Filter System

    GXSM01HWW GE Shower Filter System

    $42.99 Retail Price:  $45.34
  • PCF1-20MB Pentek Whole House Filter Replacement Cartridge
  • HR5-WH Sprite Royale Handheld Shower Filter System - White
  • CBC-BB Pentek Whole House Filter Replacement Cartridge

    CBC-BB Pentek Whole House Filter Replacement Cartridge

    $42.99 Retail Price:  $44.26
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $42.99 Retail Price:  $52.89
  • ACT-8-CM Sprite Cascading Traditional Shower 8-Setting Filtered Shower Head (Chrome)
  • SS-IMF Everpure Replacement Filter Cartridge

    SS-IMF Everpure Replacement Filter Cartridge

    $43.05 Retail Price:  $66.69

Items 1 to 48 of 143 total

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