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When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 326 total

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  • 67015 Aquamira Filtered Water Bottle - 1

    Aquamira Filtered Water Bottle (#67015)

    $27.95
    MSRP: $34.44
    Save 19%
  • HBSF-Blu Hydros Side-Fill Water Purifier Bottle - Blue Lid
  • HBSF-Char Hydros Side-Fill Water Purifier Bottle - Charcoal Lid
  • K40WSSL Klean Kanteen 40-Ounce Stainless Steel Wide Mouth Bottle with Loop-cap
  • ZeroWater Filtered Tumbler & Replacement Filters (26 ounce, #ZT-M01)
  • W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • 67106 Aquamira Frontier Pro Portable Filter System (Military)
  • 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP110-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP110-3 Whole House Water Filter

    AP110-3 3M Aqua-Pure Replacement Water Filter Cartridge

    $29.99
    MSRP: $34.49
    Save 13%
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge
  • AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    3M Aqua-Pure AP117RO Reverse Osmosis Filter

    $23.99
    MSRP: $30.23
    Save 21%
  • 3M Aqua-Pure AP124-3 Water Filter

    AP124-3 3M Aqua-Pure Replacement Water Filter

    $29.99
    MSRP: $35.64
    Save 16%
  • 3M Aqua-Pure AP-250R Under Sink Water Filter

    AP-250R 3M Aqua-Pure Undersink Water Filter Cartridge

    $29.99
    MSRP: $41.39
    Save 28%
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99
    MSRP: $34.49
    Save 25%
  • 3M Aqua-Pure APHF-RC Shower Filter Cartridges
  • APLPSF-RC 3M Aqua-Pure Shower Filter Cartridge

    APLPSF-RC 3M Aqua-Pure Shower Filter Cartridge

    $25.99
    MSRP: $27.36
    Save 5%
  • APSH5-RC 3M Aqua-Pure 5-in-1 Shower Filter Cartridge

    APSH5-RC 3M Aqua-Pure 5-in-1 Shower Filter Cartridge

    $27.99
    MSRP: $33.91
    Save 17%
  • AF-10-3690 Aries Replacement Fluoride Filter Cartridge

    AF-10-3690 Aries Replacement Fluoride Filter Cartridge

    $28.99
    MSRP: $32.19
    Save 10%
  • 42633 Brita On-Tap Faucet Filter System - Black / Chrome
  • 42647 Brita AquaView AVFR-200 Faucet Filter Replacement Cartridge
  • ATLANTIS-BLUE-PITCHER Brita 48-Ounce Water Pitcher

    Brita Atlantis Blue Water Filter Pitcher (48 Ounce)

    $26.99
    MSRP: $33.34
    Save 19%
  • 42617 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome
  • 35507 Brita Classic OB01 48-Ounce Water Pitcher

    Brita Classic Water Filter Pitcher (48 Ounce, #OB01)

    $22.05
    MSRP: $33.34
    Save 34%
  • 42378 Brita Deluxe OB26 80-Ounce Water Pitcher
  • 35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    $23.99
    MSRP: $29.89
    Save 20%
  • 42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    $29.99
    MSRP: $37.94
    Save 21%

Items 1 to 48 of 326 total

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