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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.

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  • FRSS-2.5 Sterilight 2.5 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 Retail Price:  $90.00
  • S330RL Viqua Water Disinfection System UV Lamp

    S330RL Viqua Water Disinfection System UV Lamp

    $69.99 Retail Price:  $89.00
  • CFS117-S Cuno Whole House Filter Replacement Cartridge

    CFS117-S Cuno Whole House Filter Replacement Cartridge

    $37.99 Retail Price:  $40.24
  • HF40-S Cuno Whole House Filter Replacement Cartridge

    HF40-S Cuno Whole House Filter Replacement Cartridge

    $105.99 Retail Price:  $123.04
  • HF45-S Cuno Whole House Filter Replacement Cartridge

    HF45-S Cuno Whole House Filter Replacement Cartridge

    $103.99 Retail Price:  $120.39
  • TW30-1812-100 Filmtec Reverse Osmosis Membrane

    TW30-1812-100 Filmtec Reverse Osmosis Membrane

    $39.99 Retail Price:  $48.29
  • TW30-1812-24 Filmtec Reverse Osmosis Membrane

    TW30-1812-24 Filmtec Reverse Osmosis Membrane

    $23.99 Retail Price:  $40.24
  • TW30-1812-36 Filmtec Reverse Osmosis Membrane

    TW30-1812-36 Filmtec Reverse Osmosis Membrane

    $41.99 Retail Price:  $48.29
  • WS-20BB Pentek Whole House Filter Replacement Cartridge

    WS-20BB Pentek Whole House Filter Replacement Cartridge

    $46.99 Retail Price:  $52.08
  • GK-1 Rainshowr Green Knight Hydroponic Dechlorinator

    GK-1 Rainshowr Green Knight Hydroponic Dechlorinator

    Regular Price: $64.99

    Special Price: $57.05

  • TFM-50-A Tier1 Reverse Osmosis Membrane

    TFM-50-A Tier1 Reverse Osmosis Membrane

    $45.99 Retail Price:  $55.19

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