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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.

46 Item(s)

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  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • RS6 OmniFilter Comparable Whole House Water Filter by Tier1
  • WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $54.99 Retail Price:  $89.00
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99 Retail Price:  $85.99
  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    As Low As $40.50 Per Filter

  • EPM-20BB Pentek Whole House Filter Cartridge
  • GAC20-BB Pentek Whole House Water Filter
  • RS6-SS2-S06 OmniFilter Whole House Cartridge
  • 3M Aqua-Pure AP817 Whole House Water Filter Cartridge
  • HF40-S Cuno Whole House Filter Replacement Cartridge

    HF40-S Cuno Whole House Filter Replacement Cartridge

    $105.99 Retail Price:  $123.04
  • HF45-S Cuno Whole House Filter Replacement Cartridge

    HF45-S Cuno Whole House Filter Replacement Cartridge

    $103.99 Retail Price:  $120.39
  • HF60-S Cuno Whole House Filter Replacement Cartridge

    HF60-S Cuno Whole House Filter Replacement Cartridge

    $138.99 Retail Price:  $160.99
  • HF65 Cuno Whole House Filter Replacement Cartridge

    HF65 Cuno Whole House Filter Replacement Cartridge

    $127.99 Retail Price:  $148.80
  • HF65-S Cuno Whole House Filter Replacement Cartridge

    HF65-S Cuno Whole House Filter Replacement Cartridge

    Regular Price: $133.99

    Special Price: $112.05

  • FXHTC GE SmartWater Whole House Filter Replacement Cartridge
  • 22006 Hydrologic BigBoy Replacement Carbon Filter - Green

    22006 Hydrologic BigBoy Carbon Filter (Green)

    Regular Price: $80.99

    Special Price: $45.05

  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $36.99 Retail Price:  $49.44
  • CFBC-20 Pentek Replacement Filter Cartridge

    CFBC-20 Pentek Replacement Water Filter Cartridge

    $23.49 Retail Price:  $29.31
  • FLOPLUS-10BB Pentek Replacement Filter Cartridge

    FLOPLUS-10BB Pentek Replacement Filter Cartridge

    $44.99 Retail Price:  $48.52
  • RFC-BB Pentek Whole House Filter Replacement Cartridge - 1
  • GK-1 Rainshowr Green Knight Hydroponic Dechlorinator

    GK-1 Rainshowr Green Knight Hydroponic Dechlorinator

    Regular Price: $64.99

    Special Price: $57.05

  • SF100 OmniFilter Shower-Soft Inline Shower Filter

    SF100 OmniFilter Shower-Soft Inline Shower Filter

    $29.99 Retail Price:  $35.64
  • BB-WH Sprite Filtered Bath Ball - White

    BB-WH Sprite Bath Ball Filter (White)

    $31.99 Retail Price:  $34.34
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge
  • 1040 Katadyn Camping Water Filter Kit

    1040 Katadyn Camping Water Filter Kit

    $199.95 Retail Price:  $232.24
  • 2110070 Katadyn Camping Filter System

    2110070 Katadyn Camping Filter System

    $317.95 Retail Price:  $367.94
  • 8016389 Katadyn Camping Filter System

    8016389 Katadyn Camping Filter System

    $1,499.95 Retail Price:  $1727.24
  • MATRIKX-1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-5-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-CTO2-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • RS16 OmniFilter Whole House Replacement Filter Cartridge
  • SF200-S2-S06 OmniFilter Shower Filter System

    SF200-S2-S06 OmniFilter Shower Filter System

    $26.99 Retail Price:  $33.34
  • CBC-20 Pentek Replacement Filter Cartridge

    CBC-20 Pentek Replacement Filter Cartridge

    $25.99 Retail Price:  $35.64
  • CRFC-20BB Pentek Chloramine Reduction Water Filter

    CRFC-20BB Pentek Chloramine Reduction Water Filter

    $109.99 Retail Price:  $156.27
  • HOC Sprite High Output Shower Filter Cartridge Replacement
  • FXB20RFL Filtrex Green Radial Flow Water Filter Cartridges
  • CBC-10BB-WF Tier1 Water Filter Cartridge

    CBC-BB Pentek Comparable Water Filter Cartridge by Tier1

    $39.99 Retail Price:  $43.69
  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    Regular Price: $24.99

    Special Price: $20.05

  • Sprite HO2-CM High Output Universal Shower Filter (Chrome)
  • Sprite HO2-BN High Output Universal Shower Filter (Brushed Nickel)
  • Sprite HO2-CM High Output Universal Shower Filter (Chrome)
  • SF200R-S6-05 Omnifilter Replacement Shower Filter (close up)

    SF200R-S6-05 Omnifilter Replacement Shower Filter

    $14.99 Retail Price:  $19.54

46 Item(s)

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