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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 76 total

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

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

    $64.99 Retail Price:  $110.00
  • FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    $62.99 Retail Price:  $110.00
  • FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

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

    $62.99 Retail Price:  $110.00
  • FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    $62.99 Retail Price:  $110.00
  • VIQUA-S5Q-PV
  • VIQUA-S8Q-PA

    S8Q-PA Viqua Home UltraViolet Water Disinfection System

    $415.99 Retail Price:  $575.00
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $81.99 Retail Price:  $85.99
  • W50PEHD American Plumber Comparable Filter by Tier1 (6-Pack)
  • Pentair HEPP10-40DB Pureflex High Efficiency

    Pentair HEPP10-40DB Pureflex High Efficiency

    $93.99 Retail Price:  $113.99
  • Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    Pentair HEPP10-30DB Pureflex High Efficiency Cartridge

    $107.99 Retail Price:  $130.99
  • Pentair NEPP12-20DB Pureflex Pleated Polypropylene Cartridge
  • Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge
  • SPC-45-1005 Hydronix Whole House Sediment Filter Cartridge 6pk
  • SDC-45-1050 Hydronix Pleated Sediment Water Filter (6-Pack)
  • DGD-7525 Pentek Whole House Replacement Sediment Filter (20-Pack)
  • ECP5-20 Pentek Replacement Filter Cartridge (20-Pack)
  • ECP5-20 Pentek Replacement Filter Cartridge (6-Pack)
  • 650730-004 Viqua LightWise Upgrade Kit for Pro 10 Systems

    650730-004 Viqua LightWise Upgrade Kit for Pro 10 Systems

    $655.99 Retail Price:  $1027.99
  • Cuno HF90-S Replacement Filter Cartridge

    Cuno HF90-S Replacement Filter Cartridge

    $185.99 Retail Price:  $243.79
  • 4002124 American Plumber Whole House Sediment Filter System

    4002124 American Plumber Whole House Sediment Filter System

    $699.99 Retail Price:  $807.29
  • 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 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 AP815 Whole House Water Filter
  • CB6 OmniFilter Whole House Filter Replacement Cartridge
  • CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System
  • HF95 Cuno Whole House Filter Replacement Cartridge

    HF95 Cuno Whole House Water Filter Cartridge

    $197.99 Retail Price:  $229.99
  • HF95-S Cuno Whole House Water Filter Cartridge

    HF95-S Cuno Whole House Water Filter Cartridge

    $195.99 Retail Price:  $227.69
  • W9381000 Doulton High Flow Multi Candle Filter Module

    W9381000 Doulton High Flow Multi Candle Filter Module

    $140.99 Retail Price:  $158.36
  • W9381105 Doulton RIO 2000 Ceramic Multi-Candle Filter Cartridge
  • EV9797-20 Everpure Scale Inhibitor Feeder and Deliming System
  • Quad-MC2 Everpure Replacement Filter Cartridge Kit

    Quad-MC2 Everpure Replacement Filter Cartridge Kit

    $299.99 Retail Price:  $301.29
  • SC10-11 Everpure Commercial Filter System

    SC10-11 Everpure Commercial Filter System

    $260.99 Retail Price:  $298.99
  • NF90-400 Filmtec Nanofiltration Element

    NF90-400 Dow Filmtec Nanofiltration Element

    $999.99 Retail Price:  $1152.29
  • SW30-2521 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • SW30HR-380 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2026 Filmtec Commercial Reverse Osmosis Membrane

    $149.99 Retail Price:  $174.79
  • TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2521 Filmtec Commercial Reverse Osmosis Membrane

    $177.99 Retail Price:  $203.54
  • TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    $233.99 Retail Price:  $236.34

Items 1 to 48 of 76 total

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