Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems, Filters, & Parts

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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Items 1 to 48 of 51 total

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  • Aqua-Pure 3M Easy Full Flow Drinking Water Filtration System CYST-FF
  • 3M Aqua-Pure SS12 EPE-316L Whole House Stainless Steel Filter Housing
  • 3M Aqua-Pure SS20 EPE-316L Whole House Stainless Steel Filter Housing
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (6-Pack)
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • KX-MATRIKX-1-HD20 Technologies MatrikX Whole House Carbon Filter By Tier1
  • MATRIKX-5-HD20 KX Technologies MatrikX Comparable Whole House Carbon Filter by Tier1
  • FLOPLUS-20BB Pentek Comparable Whole House Carbon Water Filter by Tier1

    FLOPLUS-20BB Pentek Replacement Filter Cartridge by Tier1

    $57.99 MSRP: $136.99
    Save 58%
  • 3M Aqua-Pure AP117RO Reverse Osmosis Filter (2 Pack)
  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)
  • 3M Aqua-Pure AP111-2 Whole House Water Filter
  • 3M Aqua-Pure AP2150  Water Filter
  • 3M Aqua-Pure AP420 Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP460 Replacement Filter Cartridge
  • 3M Aqua-Pure AP815 Whole House Water Filter
  • 3M Aqua-Pure AP815-2 Whole House Water Filter
  • 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
  • C-LC 3M Aqua-Pure Undersink Water Filter

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

    $50.99
    MSRP: $65.54
    Save 22%
  • 3M Aqua-Pure RO3RC Reverse Osmosis Pre and Post Filter Set
  • UVQS-1X 3M Aqua-Pure UV System Quartz Sleeve
  • SST1 3M Aqua-Pure Whole House Filtration System
  • SS4-EPE-316L 3M Aqua-Pure Water Filter System

    SS4-EPE-316L 3M Aqua-Pure Filter System

    $1,558.99
    MSRP: $1,795.14
    Save 13%
  • 3M Aqua-Pure SS8 EPE-316L Whole House Stainless Steel Filter Housing
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (50-Pack)
  • 3M Aqua-Pure AP917HD Whole House Water Filter Cartridge

    AP917HD 3M Aqua-Pure Whole House Water Filter Replacement

    $148.99
    MSRP: $173.64
    Save 14%
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99
    MSRP: $137.99
    Save 25%
  • 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    $70.99
    MSRP: $90.84
    Save 22%
  • 3M Aqua-Pure AP810-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP811-2 Whole House Water Filter
  • 3M Aqua-Pure AP814-2 Whole House Water Filter
  • 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
    MSRP: $342.69
    Save 30%
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99
    MSRP: $128.79
    Save 8%
  • EP15 3M Aqua-Pure Whole House Water Filter

    EP15 3M Aqua-Pure Whole House Water Filter Cartridge

    $69.99
    MSRP: $82.79
    Save 15%
  • EP25 3M Aqua-Pure Whole House Water Filter

    EP25 3M Aqua-Pure Whole House Water Filter Cartridge

    $91.99
    MSRP: $111.54
    Save 18%
  • 3M Aqua-Pure AP510 Water Filter System
  • 3M Aqua-Pure AP802 Whole House Water Filter

    AP802 3M Aqua-Pure Whole House Water Filtration System

    $100.99
    MSRP: $118.44
    Save 15%
  • 3M Aqua-Pure AP902 Whole House Water Filter

    AP902 3M Aqua-Pure Whole House Water Filtration System

    $204.99
    MSRP: $238.04
    Save 14%
  • 3M Aqua-Pure AP11T Whole House Water Filter

    AP11T 3M Aqua-Pure Whole House Water Filtration System

    $79.99
    MSRP: $94.29
    Save 15%
  • SST1HA 3M Aqua-Pure Water Filter System Housing
  • FLOPLUS 20BB Comparable Water Filter Cartridge by Tier1

    CBC-20BB Pentek Replacement Filter Cartridge by Tier1

    $57.99
    MSRP: $136.99
    Save 58%
  • 3M Aqua-Pure AP102T Whole House Water Filter System

    AP102T 3M Aqua-Pure Whole House Filter System

    $139.99
    MSRP: $165.99
    Save 16%

Items 1 to 48 of 51 total

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