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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 98 total

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  • 22155 Triton Water Replacement Membrane by Hydrologic

    22155 Triton Water Replacement Membrane by Hydrologic

    $60.99
    MSRP: $79.99
    Save 24%
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • DUPONT-WFQTC90001
  • Brondell RF-20 H2O+ Circle Replacement Filter Set
  • WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System
  • FRSS-6 Sterilight 6 GPM 1-inch Flow Restrictor
  • FRSS-6-34 Sterilight 6 GPM 3/4-inch Flow Restrictor
  • Sterilight 8 GPM 1-inch Flow Restrictor
  • FRSS-10 Sterilight 10 GPM 3/4-inch Flow Restrictor
  • FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    $62.99
    MSRP: $110.00
    Save 43%
  • FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    $62.99
    MSRP: $110.00
    Save 43%
  • FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    $62.99
    MSRP: $110.00
    Save 43%
  • FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    $62.99
    MSRP: $110.00
    Save 43%
  • FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    $62.99
    MSRP: $110.00
    Save 43%
  • Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge
  • 602976 Viqua Quartz Sleeve for 602856 UV Lamp

    602976 Viqua Quartz Sleeve for 602856 UV Lamp

    $63.99
    MSRP: $86.00
    Save 26%
  • SPC-45-1020 Hydronix 10 x 4.5 inch Pleated Sediment Water Filter 6pk
  • FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor

    FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor

    $64.99
    MSRP: $110.00
    Save 41%
  • FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    $64.99
    MSRP: $110.00
    Save 41%
  • SPC-45-1010 Hydronix Pleated Sediment Water Filter (6-Pack)
  • SPC-45-1030 Hydronix Pleated Sediment Water Filter (6-Pack)
  • FRSS-3.5 Sterilight 3.5 GPM 1/2-inch Flow Restrictor
  • FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    FRSS-2.5 Viqua 2.5 GPM 1/2-inch Flow Restrictor

    $69.99
    MSRP: $90.00
    Save 22%
  • FRSS-3.5 Viqua 3.5 GPM 1/2-inch Flow Restrictor

    FRSS-3.5 Viqua 3.5 GPM 1/2-inch Flow Restrictor

    $69.99
    MSRP: $90.00
    Save 22%
  • S330RL Viqua Water Disinfection System UV Lamp

    S330RL Viqua Water Disinfection System UV Lamp

    $69.99
    MSRP: $89.00
    Save 21%
  • SDC-45-1050 Hydronix Pleated Sediment Water Filter (6-Pack)
  • 36002018 PURA UV Lamp

    36002018 PURA UV Lamp

    $64.99
    MSRP: $70.14
    Save 7%
  • CQE-RC-04003 Crystal Quest Multi Stage ULTRA Water Filter Cartridge
  • 1-100-F Rusco Spin-Down Water Filter System

    1-100-F Rusco Spin-Down Water Filter System

    $60.69
    MSRP: $74.74
    Save 19%
  • SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    $60.99
    MSRP: $81.64
    Save 25%
  • FXSVC GE SmartWater Undersink Filter Set

    FXSVC GE SmartWater Undersink Filter Set

    $60.99
    MSRP: $72.34
    Save 16%
  • CRFC-BB Pentek Chloramine Reduction Water Filter

    CRFC-BB Pentek Chloramine Reduction Water Filter

    $61.79
    MSRP: $73.36
    Save 16%
  • FLOPLUS-20BB Pentek Replacement Filter Cartridge

    FLOPLUS-20BB Pentek Replacement Filter Cartridge

    $61.99
    MSRP: $80.49
    Save 23%
  • HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter Housing
  • CQE-SP-00809 Crystal Quest Bath Ball Filter

    CQE-SP-00809 Crystal Quest Bath Ball Filter

    $61.99
    MSRP: $73.59
    Save 16%
  • CFS517 Cuno Whole House Filter Replacement Cartridge

    CFS517 Cuno Whole House Filter Replacement Cartridge

    $62.05
    MSRP: $87.39
    Save 29%
  • 3/4-500-F Rusco Polyester Screened Spin-Down Water Filtration System
  • 1-40400-W Seychelle Radiological Water Pitcher Filter Replacement

    1-40400-W Seychelle Radiological Water Pitcher Filter

    $62.95
    MSRP: $74.69
    Save 16%
  • 7CB5 Everpure Replacement Filter Cartridge

    7CB5 Everpure Replacement Filter Cartridge

    $62.99
    MSRP: $75.89
    Save 17%
  • SFH5-CM Sprite ShowerFalls Filtered Shower Extension - Chrome - 1
  • WI-BG-COUNTERTOP-FILTER Body Glove Replacement Countertop Water Filter
  • FRSS-12 Sterilight 12 GPM 1-inch Flow Restrictor
  • FRSS-20 Sterilight 20 GPM 1-inch Flow Restrictor
  • CFS8112 Cuno Whole House Filter Replacement Cartridge

    CFS8112 Cuno Whole House Filter Replacement Cartridge

    $63.05
    MSRP: $69.56
    Save 9%
  • 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter

Items 1 to 48 of 98 total

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