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  • 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 56 total

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  • WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99 Retail Price:  $27.99
  • W9222900 Doulton Ceramic Water Filter
  • F8-WHITE Instapure Ultra Faucet Filter System - White

    F8 Instapure Ultra Faucet Filter System - White

    $28.99 Retail Price:  $31.04
  • CB6 Multipure Aquaversa Comparable Water Filter: HDG-CB6-14 HydroGuard

    CB6 Comparable Water Filter: HDG-CB6-14 HydroGuard

    $29.99 Retail Price:  $43.99
  • Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    $22.99 Retail Price:  $31.04
  • K5567JJ Omnipure Inline Filter Replacement Cartridge

    K5567JJ Omnipure Replacement Inline Water Filter Cartridge

    Regular Price: $20.99

    Special Price: $20.05

  • IC-EZ-1 Culligan Level 1 Easy-Change Inline Filter System
  • 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
  • 4US-MAXS-F01 Filtrete Replacement Filter Cartridge

    4US-MAXS-F01 3M Filtrete Water Filter Cartridge

    $20.99 Retail Price:  $25.29
  • E5620-P Omnipure Replacement Filter Cartridge

    E5620-P Omnipure Replacement Filter Cartridge

    $20.99 Retail Price:  $31.04
  • K5633BB Omnipure Inline GAC Filter Cartridge

    K5633BB Omnipure Inline GAC Filter Cartridge

    $20.99 Retail Price:  $23.34
  • F2-CHROME Instapure Essentials Faucet Filter System - Chrome
  • R8-1PK-CHROME Instapure Ultra Faucet Filter Replacement Cartridge - Chrome
  • E5520 Omnipure Replacement Filter Cartridge

    E5520 Omnipure Replacement Filter Cartridge

    $21.99 Retail Price:  $26.44
  • K2567JJ Omnipure Inline GAC and KDF-55 Filter Cartridge
  • Q5621-P Omnipure Replacement Filter Cartridge

    Q5621-P Omnipure Replacement Filter Cartridge

    $21.99 Retail Price:  $27.59
  • FM-15A Culligan Level 3 On-Tap Faucet Filter System

    FM-15A Culligan Level 3 On-Tap Faucet Filter System

    $22.99 Retail Price:  $28.51
  • IC-1000 Culligan Inline Filter
  • QC10-CBRR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $22.99 Retail Price:  $30.69
  • K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    $22.99 Retail Price:  $28.74
  • 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
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $23.99 Retail Price:  $28.99
  • P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    $23.99 Retail Price:  $29.13
  • QC10-EPR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    $23.99 Retail Price:  $25.29
  • Q5620-P Omnipure Replacement Filter Cartridge

    Q5620-P Omnipure Replacement Filter Cartridge

    $23.99 Retail Price:  $29.89
  • K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    $23.99 Retail Price:  $29.89
  • D-30 Culligan Level 2 Undersink Filter Replacement Cartridge
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • K5615-BB Omnipure Carbon Block Inline Filter

    K5615-BB Omnipure Carbon Block Inline Filter

    $24.99 Retail Price:  $31.04
  • 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
  • E5515-P Omnipure Replacement Filter Cartridge

    E5515-P Omnipure Replacement Filter Cartridge

    $25.99 Retail Price:  $31.04
  • E5720-P Omnipure Replacement Filter Cartridge

    E5720-P Omnipure Replacement Filter Cartridge

    $25.99 Retail Price:  $32.19
  • SL10-C Omnipure Phosphate Inline Filter

    SL10-C Omnipure Phosphate Inline Filter

    $25.99 Retail Price:  $32.19
  • P1012581 Culligan Undersink Replacement Filter Cartridge
  • FXMLH GE Faucet Filter Replacement Cartridge
  • WS-20 Pentek Water Softening Filter

    WS-20 Pentek Water Softening Filter

    $26.99 Retail Price:  $35.64
  • GXILQR GE SmartWater Inline Filter Replacement Cartridge
  • E5615 Omnipure Replacement Filter Cartridge

    E5615 Omnipure Replacement Filter Cartridge

    $26.99 Retail Price:  $40.24
  • QC10-EP Pentek Undersink Quick-Change Filter System

    QC10-EP Pentek Quick-Change Filter System

    Regular Price: $29.99

    Special Price: $27.05

  • TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  • WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set
  • QC10-CB1 Pentek Undersink Quick-Change Filter System

    QC10-CB1 Pentek Quick-Change Water Filtration System

    $28.79 Retail Price:  $35.41
  • 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

Items 1 to 48 of 56 total

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