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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 59 total

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  • AF-20-2015 Aries Comparable Sediment Water Filter by Tier1
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • TIER1-FX30-934

    TIER1-FX30-934

    $8.99
  • TIER1-S1AD-934

    TIER1-S1AD-934

    $5.99 Retail Price:  $12.99
  • TIER1-DGD1-20BB

    TIER1-DGD1-20BB

    $20.99
  • Hydronix SDC-25-1005 6-Pack Whole House Replacement Sediment Filter Cartridge
  • SDC-45-1005 Hydronix Whole House Sediment Filter Cartridge (6-Pack)
  • SDC-45-1020 Hydronix Whole House Sediment Filter Cartridge (6-Pack)
  • HYDRONIX_SPC_45_1005_6_PACK
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AMERICAN-PLUMBER-W20CLA

    AMERICAN-PLUMBER-W20CLA

    $11.99 Retail Price:  $12.64
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • AMERICAN-PLUMBER-W30PE

    AMERICAN-PLUMBER-W30PE

    $16.99 Retail Price:  $18.04
  • AMERICAN-PLUMBER-W50PE

    AMERICAN-PLUMBER-W50PE

    $16.99 Retail Price:  $18.39
  • AMERICAN-PLUMBER-W50W

    AMERICAN-PLUMBER-W50W

    $13.99
  • AMERICAN-PLUMBER-W5CIP

    AMERICAN-PLUMBER-W5CIP

    $21.99
  • AMERICAN-PLUMBER-W5P

    AMERICAN-PLUMBER-W5P

    $12.99 Retail Price:  $13.79
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • AMERICAN-PLUMBER-WPD-110
  • AMERICAN-PLUMBER-WRC25HD

    AMERICAN-PLUMBER-WRC25HD

    $35.99 Retail Price:  $39.99
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • DESAL-TFM-24

    DESAL-TFM-24

    $24.99 Retail Price:  $47.14
  • CB-25-1005 Hydronix Replacement Filter Cartridge
  • HYDRONIX-CB-25-2010

    HYDRONIX-CB-25-2010

    $14.99
  • HYDRONIX-CB-45-2010

    HYDRONIX-CB-45-2010

    $36.99 Retail Price:  $49.44
  • SDC-25-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • HYDRONIX-SDC-25-1020

    HYDRONIX-SDC-25-1020

    $4.99 Retail Price:  $5.05
  • HYDRONIX-SDC-25-2005

    HYDRONIX-SDC-25-2005

    $6.99 Retail Price:  $8.27
  • HYDRONIX-SDC-25-2020

    HYDRONIX-SDC-25-2020

    $7.99
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • HYDRONIX-SDC-45-1005

    HYDRONIX-SDC-45-1005

    $13.99
  • SDC-45-2050 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • WATTS-AICRO

    WATTS-AICRO

    $7.99 Retail Price:  $9.19
  • WATTS-AICRO-JGK

    WATTS-AICRO-JGK

    $10.99
  • FPMB-BB20-10 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • WATTS-FPMB20-20

    WATTS-FPMB20-20

    $9.99
  • WATTS-FPMB20-978

    WATTS-FPMB20-978

    $3.99 Retail Price:  $5.16
  • WATTS-FPMB5-20

    WATTS-FPMB5-20

    $5.99 Retail Price:  $6.89
  • WATTS-FPMB5-978

    WATTS-FPMB5-978

    $4.99 Retail Price:  $5.16

Items 1 to 48 of 59 total

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