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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 277 total

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  • AP327 3M Aqua-Pure Water Filter Replacement Cartridge
  • 3M Aqua-Pure AP200 Under Sink Water Filter

    AP200 3M Aqua-Pure Undersink Water Filtration System

    Regular Price: $104.99

    Special Price: $87.05

  • 3M Aqua-Pure AP217 Under Sink Water Filter
  • AP-DW80/90 3M Aqua-Pure Water Filter Set

    AP-DW80/90 3M Aqua-Pure Pre and Post Filter Set

    $116.99 Retail Price:  $198.46
  • 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge
  • C-CS-FF 3M Aqua-Pure Undersink Water Filter

    C-CS-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    $43.99 Retail Price:  $48.06
  • EP15 3M Aqua-Pure Whole House Water Filter

    EP15 3M Aqua-Pure Whole House Water Filter Cartridge

    $69.99 Retail Price:  $82.79
  • EP25 3M Aqua-Pure Whole House Water Filter

    EP25 3M Aqua-Pure Whole House Water Filter Cartridge

    $91.99 Retail Price:  $111.54
  • IL-IM-01 3M Aqua-Pure Inline Water Filter

    IL-IM-01 3M Aqua-Pure Inline Water Filter Cartridge

    $18.99 Retail Price:  $24.14
  • WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    $290.21 Retail Price:  $386.95
  • WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    $151.46 Retail Price:  $201.95
  • WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    $138.71 Retail Price:  $184.95
  • 42618 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome (2-Pack)
  • 35501 Brita OB03 Pitcher Replacement Cartridge

    35501 Brita OB03 Pitcher Replacement Cartridge

    $9.99 Retail Price:  $13.79
  • 35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    $23.99 Retail Price:  $29.89
  • 42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    $29.99 Retail Price:  $37.94
  • 35516 Brita OB03 Pitcher Replacement Cartridge (5-Pack)

    35516 Brita OB03 Pitcher Replacement Cartridge (5-Pack)

    $36.99 Retail Price:  $44.84
  • 71048 Brita OB03 Pitcher Replacement Cartridge (6-Pack)

    71048 Brita OB03 Pitcher Replacement Cartridge (6-Pack)

    $43.99 Retail Price:  $52.89
  • 42629 Brita Slim OB11 40-Ounce Water Pitcher

    42629 Brita Slim OB11 40-Ounce Water Pitcher

    $20.99 Retail Price:  $26.44
  • VINTAGE-PITCHER Brita 80-Ounce Water Pitcher

    Brita Vintage Water Filter Pitcher (80 Ounce)

    $38.99 Retail Price:  $52.89
  • 42201 Brita On-Tap FF-100 Faucet Filter System - White

    42201 Brita On-Tap FF-100 Faucet Filter System - White

    $32.99 Retail Price:  $42.54
  • 42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White
  • 42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)
  • 40043 Camco TastePURE Inline Large Capacity Filter

    40043 Camco TastePURE Large Capacity Inline Water Filter

    $24.99 Retail Price:  $32.19
  • FM-15A Culligan Level 3 On-Tap Faucet Filter System

    FM-15A Culligan Level 3 On-Tap Faucet Filter System

    $22.99 Retail Price:  $28.51
  • FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge
  • IC-EZ-1 Culligan Level 1 Easy-Change Inline Filter System
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • IC-EZ-4 Culligan Level 4 Easy-Change Inline Filter System
  • RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge
  • RV-700 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • RV-800 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  • US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 Retail Price:  $101.19
  • CFS8112 Cuno Whole House Filter Replacement Cartridge

    CFS8112 Cuno Whole House Filter Replacement Cartridge

    $63.05 Retail Price:  $69.56
  • CFS8112-S Cuno Whole House Filter Replacement Cartridge

    CFS8112-S Cuno Whole House Filter Replacement Cartridge

    $70.99 Retail Price:  $94.29
  • CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    $52.05 Retail Price:  $61.97
  • CFS8812X Cuno Whole House Filter Replacement Cartridge

    CFS8812X Cuno Whole House Filter Replacement Cartridge

    $66.05 Retail Price:  $71.29
  • CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    $74.99 Retail Price:  $77.04
  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $62.99

    Special Price: $52.05

  • CFS9720 Cuno Whole House Filter Replacement Cartridge

    CFS9720 Cuno Whole House Filter Replacement Cartridge

    Regular Price: $50.05

    Special Price: $45.05

Items 1 to 48 of 277 total

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