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  • Your filters are guaranteed to be the right fit!
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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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  • DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack
  • WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)
  • DuPont WFPT200X Mirage Filtered Water Pitcher
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99 Retail Price:  $27.99
  • RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  • HBSF-Grn Hydros Side-Fill Water Purifier Bottle - Green Lid
  • HBSF-Orng Hydros Side-Fill Water Purifier Bottle - Orange Lid

    Orange Lid Hydros Side-Fill Water Purifier Bottle

    $27.99 Retail Price:  $34.49
  • HBSF-Pnk Hydros Side-Fill Water Purifier Bottle - Pink Lid
  • DuPont WFQTR130004 Quick Twist Refrigerator/Icemaker Filter System
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

    Regular Price: $20.99

    Special Price: $20.05

  • RV-700 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • EV9100-08 Everpure IN-10 Inline Filter with 3/8 inch NPT threads

    EV9100-08 Everpure IN-10 Inline Water Filter

    $20.99 Retail Price:  $33.34
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99 Retail Price:  $24.60
  • K5633BB Omnipure Inline GAC Filter Cartridge

    K5633BB Omnipure Inline GAC Filter Cartridge

    $20.99 Retail Price:  $23.34
  • GAC-20 Pentek Replacement Filter Cartridge

    GAC-20 Pentek Replacement Filter Cartridge

    $21.99 Retail Price:  $23.56
  • F2-CHROME Instapure Essentials Faucet Filter System - Chrome
  • K2567JJ Omnipure Inline GAC and KDF-55 Filter Cartridge
  • RV-600A Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)
  • PR-3U Culligan Universal Water Pitcher Replacement Cartridge (3-Pack)
  • QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $22.99 Retail Price:  $30.69
  • Dupont WFSS1050CH Shower Water Filter System (Chrome)
  • AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    $23.99 Retail Price:  $30.23
  • ICF-2512 Hydronix Inline Coconut Carbon Filter

    ICF-2512 Hydronix Inline Coconut Carbon Filter

    $23.99 Retail Price:  $26.34
  • FXPL3D GE Pitcher Replacement Cartridge (3-Pack)
  • HBSF-3FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter (3-Pack)
  • QC10-TSGAC Pentek Undersink Quick-Change Filter System
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99 Retail Price:  $34.49
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $25.99 Retail Price:  $30.51
  • 47-55704G2 Water Factory Systems Replacement Filter Cartridge
  • P1012581 Culligan Undersink Replacement Filter Cartridge
  • RV-800 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • 47-55706G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • CQE-RC-04038 Crystal Quest Water Cooler GAC Filter Cartridge
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge
  • RFC-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • HBSF-Blu Hydros Side-Fill Water Purifier Bottle - Blue Lid
  • HBSF-Char Hydros Side-Fill Water Purifier Bottle - Charcoal Lid
  • Dupont WFFM300XW Low Profile Faucet Mount Drinking Water Filter System
  • 47-55712G2 Water Factory Systems Replacement Filter Cartridge
  • DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    $28.99 Retail Price:  $31.34
  • MATRIKX-Pb1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 8014523 Katadyn Micro Ultralight Series Microfilter Replacement Cartridge
  • RFC-BB Pentek Whole House Filter Replacement Cartridge - 1

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