Discount Water Filters and Air Filters at Discount Filter Store.com

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 342 total

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  • 67015 Aquamira Filtered Water Bottle - 1

    Aquamira Filtered Water Bottle (#67015)

    $29.89
    MSRP: $39.99
    Save 25%
  • HBSF-Blu Hydros Side-Fill Water Purifier Bottle - Blue Lid
  • HBSF-Char Hydros Side-Fill Water Purifier Bottle - Charcoal Lid
  • 1-04101-OT-B-F2P Seychelle 27oz Stainless Steel Flip Top Bottle - Blue - 1
  • 1-04101-OT-K-F2P Seychelle 27oz Stainless Steel Flip Top Bottle - Black - 1
  • 1-04101-OT-P-F2P Seychelle 27oz Stainless Steel Flip Top Bottle - Pink - 1
  • 1-04101-OT-R-F2P Seychelle 27oz Stainless Steel Flip Top Bottle - Red - 1
  • 1-04101-OT-S-F2P Seychelle 27oz Stainless Steel Flip Top Bottle - 1
  • 1-05307-O-Nodeco Seychelle 38oz Portable Canteen, Advanced - 1
  • 1-10203-28-HI-FC-Sey Seychelle 28oz Flip Top Filter Bottle, Standard - 1
  • 1-10203-HI-Seychelle Seychelle 24oz Flip Top Filter Bottle, Standard - 1
  • 1-10203-PI-Seychelle Seychelle 24oz Pull Top Filter Bottle, Standard
  • 1-10303-28-HI-FC-Sey Seychelle 28oz Flip Top Filter Bottle, Advanced
  • 1-10303-PI-Seychelle Seychelle 24oz Pull Top Filter Bottle, Advanced
  • 1-701-F2P-2L Seychelle Fill 2 Pure 2L Water Pouch, Advanced
  • K27SSLRF-BS Klean Kanteen Reflect 27-Ounce Stainless Steel Water Bottle with Bamboo cap - Brushed Finish
  • K27PPS Klean Kanteen 27-Ounce Stainless Steel Water Bottle with Sport-Top
  • K40PPS Klean Kanteen 40-Ounce Stainless Steel Water Bottle with Sport-Top
  • K16VWSSL Klean Kanteen 16-Ounce Stainless Steel Wide Insulated Bottle with Loop-cap
  • K27WSSL Klean Kanteen 27-Ounce Stainless Steel Wide Mouth Bottle with Loop-cap
  • K40WSSL Klean Kanteen 40-Ounce Stainless Steel Wide Mouth Bottle with Loop-cap
  • ZeroWater Filtered Tumbler & Replacement Filters (26 ounce, #ZT-M01)
  • DW-200-R American Plumber Undersink Filter Replacement Cartridge
  • 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

    3M Aqua-Pure AP117 Whole House Filter Replacement Cartridge

    $28.99
    MSRP: $54.13
    Save 46%
  • AP117RO 3M Aqua-Pure Reverse Osmosis Filter

    3M Aqua-Pure AP117RO Reverse Osmosis Filter

    $25.69
    MSRP: $38.99
    Save 34%
  • 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 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

    APHF-RC 3M Aqua-Pure Handheld Shower Filter Cartridge Set

    $27.79
    MSRP: $42.99
    Save 35%
  • APLPSF-RC 3M Aqua-Pure Shower Filter Cartridge

    APLPSF-RC 3M Aqua-Pure Shower Filter Cartridge

    $27.79
    MSRP: $36.99
    Save 25%
  • 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: $50.99
    Save 57%
  • 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%
  • 42629 Brita Slim OB11 40-Ounce Water Pitcher

    42629 Brita Slim OB11 40-Ounce Water Pitcher

    $20.99
    MSRP: $26.44
    Save 21%

Items 1 to 48 of 342 total

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