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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!

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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 130 total

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  • HF10-MS Cuno Whole House Filter Replacement Cartridge

    HF10-MS Cuno Whole House Filter Replacement Cartridge

    Regular Price: $65.99

    Special Price: $50.05

  • HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $64.99

    Special Price: $50.05

  • W9223021 Doulton Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    $50.05 Retail Price:  $70.14
  • W9122190 Doulton SuperCarb SI Replacement Element

    W9122190 Doulton SuperCarb SI Ceramic Water Filter

    $50.36 Retail Price:  $60.21
  • C-LC 3M Aqua-Pure Undersink Water Filter

    C-LC 3M Aqua-Pure Undersink Water Filter Cartridge

    $50.99 Retail Price:  $65.54
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • 1-40101-W Seychelle Family Water Pitcher
  • HM8-CM Sprite PureMist Filtered Shower Handle - Chrome
  • CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System
  • FM-5 Culligan Level 3 On-Tap Faucet Filter System
  • W9125030 Doulton Specialty Replacement Filter Cartridge
  • 153070 Pentek Filter Housing Sump

    153070 Pentek Filter Housing Sump

    $51.99 Retail Price:  $57.95
  • 3G-STANDARD-20-CLEAR-PR20 Pentek Whole House 20 inch Filter Housing
  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99 Retail Price:  $65.99
  • 4373575 Whirlpool Undersink Filter Kit

    4373575 Whirlpool Undersink Filter Kit

    Regular Price: $59.99

    Special Price: $52.05

  • CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    $52.05 Retail Price:  $61.97
  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $62.99

    Special Price: $52.05

  • 3M Aqua-Pure AP317 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • C-CYST-FF 3M Aqua-Pure Undersink Water Filter

    C-CYST-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    $52.99 Retail Price:  $56.34
  • EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    $52.99 Retail Price:  $59.79
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    $52.99 Retail Price:  $79.34
  • CTW-10-WF Tier1 Countertop Water Filter System

    CTW-10-WF Tier1 Countertop Water Filter System

    $52.99 Retail Price:  $63.24
  • Body Glove Water Filter Pitcher (#WI-BG-PITCHER)

    Body Glove Water Filter Pitcher (#WI-BG-PITCHER)

    $52.99 Retail Price:  $75.00
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • W9223002 Doulton Replacement Ceramic Filter

    W9223002 Doulton Slimline Replacement Ceramic Filter

    $53.99 Retail Price:  $60.87
  • W9223026 Doulton Replacement Ceramic Filter
  • BH-2 Everpure Replacement Filter Cartridge

    BH-2 Everpure Replacement Filter Cartridge

    $53.99 Retail Price:  $70.14
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
  • W9222901 Doulton Replacement Ceramic Filter
  • 1-140-F Rusco Polyester Screened Spin-Down Water Filtration System
  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)
  • 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge
  • 3WH-HD-S01 Filtrete Whole House Sump System

    3WH-HD-S01 3M Filtrete Whole House Sump Filter System

    $54.99 Retail Price:  $66.69
  • FXUVC GE SmartWater Undersink Filter Replacement Cartridge
  • 22017 Hydrologic Replacement De-Ionization Cartridge

    22017 Hydrologic Deionization Filter Cartridge

    $54.99 Retail Price:  $71.29
  • GXRTQ GE SmartWater Inline Filter System
  • 33001068 Hydrotech TFC Reverse Osmosis Membrane

    33001068 Hydrotech TFC Reverse Osmosis Membrane

    $54.99 Retail Price:  $65.54
  • 41400002 Hydrotech CTA Reverse Osmosis Membrane

    41400002 Hydrotech CTA Reverse Osmosis Membrane

    $54.99 Retail Price:  $67.84
  • 1-250-F Rusco Polyester Screened Spin-Down Water Filtration System
  • 1-40-F Rusco Polyester Screened Spin-Down Water Filtration System
  • CQE-SP-00805 Crystal Quest Shower Power Handheld Shower Filter
  • KDF55-20 Tier1 Replacement Filter Cartridge

    KDF55-20 Tier1 Replacement Filter Cartridge

    Regular Price: $87.99

    Special Price: $55.05

Items 1 to 48 of 130 total

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