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.

Clear All
Compare

Items 1 to 48 of 269 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
  • W9223021 Doulton Ultracarb Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    $30.00
    MSRP: $70.14
    Save 57%
  • 3M Aqua-Pure AP814 Whole House Water Filter
  • PENTEK-FLOPLUS-20

    PENTEK-FLOPLUS-20

    $30.99
    MSRP: $38.99
    Save 21%
  • MATRIKX-1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • PENTEK-3G-STANDARD-34-PR20

    PENTEK-3G-STANDARD-34-PR20

    $31.79
    MSRP: $38.86
    Save 18%
  • HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-5W Harmsco Calypso Blue Replacement Filter Cartridge

    $31.99
    MSRP: $36.79
    Save 13%
  • MATRIKX-CTO2-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX 32-450-10-GREEN / CTO2-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • PENTEK-CBC-20

    PENTEK-CBC-20

    $32.77
  • 4WH-HDGAC-F01 Filtrete Replacement Filter Cartridge

    4WH-HDGAC-F01 3M Filtrete Water Filter Cartridge

    $32.99
    MSRP: $41.39
    Save 20%
  • WPX100BB20P Pentek Replacement Filter Cartridge
  • PENTEK-153029

    PENTEK-153029

    $32.99
  • SWC-45-2005 Hydronix String-Wound Sediment Water Filter
  • 3M Aqua-Pure AP810 Whole House Water Filter Cartridge

    3M Aqua-Pure AP810 Whole House Filter Replacement Cartridge

    $33.99
    MSRP: $46.64
    Save 27%
  • PENTEK-150574

    PENTEK-150574

    $33.99
    MSRP: $34.26
    Save 1%
  • CHLORPLUS-20 Pentek Replacement Whole House Filter

    CHLORPLUS-20 Pentek Replacement Whole House Filter

    $33.99
    MSRP: $39.99
    Save 15%
  • CQE-RC-04034 Crystal Quest Reusable Pleated Water Filter Cartridge
  • WGCHD American Plumber Undersink Water Filter Replacement Cartridge
  • WP5BB20P Pentek Replacement Filter Cartridge

    WP5BB20P Pentek Replacement Filter Cartridge

    $34.99
    MSRP: $42.54
    Save 18%
  • MATRIKX-CR1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • OMNIFILTER-TO8

    OMNIFILTER-TO8

    $34.99
    MSRP: $44.84
    Save 22%
  • PENTEK-150069

    PENTEK-150069

    $34.99
    MSRP: $49.44
    Save 29%
  • CULLIGAN-HF-360

    CULLIGAN-HF-360

    $35.99
    MSRP: $47.14
    Save 24%
  • HB-20-1W Harmsco Calypso Blue Replacement Filter Cartridge
  • WP25BB20P Pentek Whole House Filter Replacement Cartridge

    WP25BB20P Pentek Whole House Filter Replacement Cartridge

    $35.99
    MSRP: $37.82
    Save 5%
  • 3M Aqua-Pure AP811 Whole House Water Filter Cartridge

    AP811 3M Aqua-Pure Whole House Filter Replacement Cartridge

    $36.99
    MSRP: $43.69
    Save 15%
  • WP1BB20P Pentek Whole House Filter Replacement Cartridge

    WP1BB20P Pentek Whole House Filter Replacement Cartridge

    $36.99
    MSRP: $39.55
    Save 6%
  • PENTEK-150070

    PENTEK-150070

    $36.99
    MSRP: $43.69
    Save 15%
  • 22006 Hydrologic Comparable Whole House Water Filter by Tier1
  • W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    $37.00
    MSRP: $54.26
    Save 32%
  • W9223002 Doulton Replacement Ceramic Filter

    W9223002 Doulton Slimline Replacement Ceramic Filter

    $37.00
    MSRP: $60.87
    Save 39%
  • PENTEK-154166

    PENTEK-154166

    $37.09
    MSRP: $44.95
    Save 17%
  • PENTEK-154167

    PENTEK-154167

    $37.09
    MSRP: $44.95
    Save 17%
  • MATRIKX-Pb1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • CRYSTAL-QUEST-CQE-RC-04035

    CRYSTAL-QUEST-CQE-RC-04035

    $37.99
  • W9125030 Doulton Fluoride Reducing Water Filter Cartridge

    W9125030 Doulton Fluoride Reducing Water Filter Cartridge

    $38.00
    MSRP: $59.96
    Save 37%
  • HFPP-1-WPR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • HB-20-20W Harmsco Calypso Blue Replacement Filter Cartridge
  • HB-20-50W Harmsco Calypso Blue Replacement Filter Cartridge

    HB-20-50W Harmsco Calypso Blue Replacement Filter Cartridge

    $38.99
    MSRP: $49.99
    Save 22%
  • PENTEK-150576

    PENTEK-150576

    $38.99
    MSRP: $48.52
    Save 20%
  • PENTEK-154195

    PENTEK-154195

    $38.99
  • PENTEK-166141

    PENTEK-166141

    $39.95
    MSRP: $58.64
    Save 32%
  • CRYSTAL-QUEST-CQE-RC-04014

    CRYSTAL-QUEST-CQE-RC-04014

    $39.99
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • K27SSLRF-MS Klean Kanteen Reflect 27-Ounce Stainless Steel Water Bottle with Bamboo cap - Mirrored Finish
  • K64WSSL Klean Kanteen 64-Ounce Stainless Steel Wide Mouth Bottle with Loop-cap
  • 8014522 Katadyn Micro Ultralight Series 21-Ounce Personal Water Purifier Bottle - Blue
  • Body Glove Water Filter Bottle (20 oz. # WI-BG-Bottle-20)

    Body Glove Water Filter Bottle (20 oz. # WI-BG-Bottle-20)

    $39.99
    MSRP: $49.95
    Save 20%

Items 1 to 48 of 269 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
Scroll To Top