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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.

Items 1 to 48 of 75 total

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  • 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    $394.99 Retail Price:  $397.34
  • 3M Aqua-Pure SS12 EPE-316L Whole House Stainless Steel Filter Housing
  • 3M Aqua-Pure SS20 EPE-316L Whole House Stainless Steel Filter Housing
  • 3M Aqua-Pure SS36 EPE-316L Whole House Stainless Steel Filter Housing
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    As Low As $30.00 Per Filter

  • 3M Aqua-Pure RM-TFC Reverse Osmosis Membrane

    RM-TFC 3M Aqua-Pure Reverse Osmosis Membrane

    Regular Price: $178.99

    Special Price: $137.05

  • TFM50EM 3M Aqua-Pure Reverse Osmosis Membrane

    TFM50EM 3M Aqua-Pure PURWATER Reverse Osmosis Membrane

    $112.99 Retail Price:  $135.69
  • AP327 3M Aqua-Pure Water Filter Replacement Cartridge
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99 Retail Price:  $137.99
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • 3M Aqua-Pure AP200 Under Sink Water Filter

    AP200 3M Aqua-Pure Undersink Water Filtration System

    Regular Price: $104.99

    Special Price: $87.05

  • 3M Aqua-Pure AP2150  Water Filter
  • 3M Aqua-Pure AP217 Under Sink Water Filter
  • 3M Aqua-Pure AP22 Under Sink Water Filter
  • 3M Aqua-Pure AP317 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP410 Water Filter Cartridges

    AP410 3M Aqua-Pure Water Filter Cartridge Set (2-Pack)

    $64.99 Retail Price:  $71.29
  • 3M Aqua-Pure AP420 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    $70.99 Retail Price:  $90.84
  • 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    $30.99 Retail Price:  $33.25
  • 3M Aqua-Pure AP460 Replacement Filter Cartridge
  • 3M Aqua-Pure AP517 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP5500RM Reverse Osmosis Membrane

    AP5500RM 3M Aqua-Pure Reverse Osmosis Membrane

    $107.99 Retail Price:  $200.00
  • 3M Aqua-Pure AP5527 Reverse Osmosis Filter
  • 3M Aqua-Pure AP810 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP811 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP811-2 Whole House Water Filter
  • 3M Aqua-Pure AP814 Whole House Water Filter
  • 3M Aqua-Pure AP814-2 Whole House Water Filter
  • 3M Aqua-Pure AP815 Whole House Water Filter
  • 3M Aqua-Pure AP815-2 Whole House Water Filter
  • 3M Aqua-Pure AP817 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP817-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99 Retail Price:  $342.69
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99 Retail Price:  $128.79
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge
  • 3M Aqua-Pure AP-C78 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP-DW70 Undersink Filter Replacement Cartridge
  • AP-DW80/90 3M Aqua-Pure Water Filter Set

    AP-DW80/90 3M Aqua-Pure Pre and Post Filter Set

    $116.99 Retail Price:  $198.46
  • 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge
  • 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
  • 3M Aqua-Pure APLPSF-PC Low Profile Shower Filter - Chrome
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge

Items 1 to 48 of 75 total

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