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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 25 of 49 total

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  1. 55897C Halsey-Taylor Water Sentry VII Drinking Fountain Filter

    55897C Halsey-Taylor Water Sentry VII Drinking Fountain Filter

    Fits Elkay and Halsey-Taylor Water Sentry VII drinking fountains Learn More
  2. CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    Fits most standard 10-inch x 2.5-inch housings Learn More
    $14.99 Retail Price:  $19.99
  3. EP-5 Pentek Replacement Filter Cartridge

    EP-5 Pentek Replacement Filter Cartridge

    Fits most housings that accept standard 5-inch x 2.5-inch water filter cartridges Learn More
  4. DW-2000-RB American Plumber Replacement Filter Cartridge

    DW-2000-RB American Plumber Replacement Filter Cartridge

    Fits American Plumber DW-1200, DW-2000 and select Culligan systems Learn More
    $59.99 Retail Price:  $61.28
  5. 110194 Amway eSpring Replacement Filter Cartridge

    110194 Amway eSpring Replacement Filter Cartridge

    Fits the eSpring Carbon Water Treatment System Learn More
  6. 3M Aqua-Pure AP22 Under Sink Water Filter

    AP22 3M Aqua-Pure Replacement Undersink Water Filter Cartridge

    Fits 3M Aqua-Pure undersink water filtration systems Learn More
    $61.99 Retail Price:  $75.89
  7. 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge

    AP-DW85 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
    $54.99 Retail Price:  $55.19
  8. C-CS-FF 3M Aqua-Pure Undersink Water Filter

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

    Fits the 3M Aqua-Pure Easy Full Flow Drinking Water Filtration System Learn More
    $43.99 Retail Price:  $48.06
  9. C-CYST-FF 3M Aqua-Pure Undersink Water Filter

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

    Fits the 3M Aqua-Pure Easy Cyst-FF Replacement System and Easy Full Flow Drinking Water System Learn More
    $52.99 Retail Price:  $56.34
  10. WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-12000 Water Filter System Learn More
    $290.21 Retail Price:  $330.82
  11. HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    Fits the Cuno VB2 and HC111-S filter systems Learn More
    $35.99 Retail Price:  $43.69
  12. EV4339-12 Everpure Claris L Replacement Hot Water Filter Cartridge

    EV4339-12 Everpure Claris L Hot Water Filter Cartridge

    For use with all Everpure Claris Duoblend bypass valve heads Learn More
    $195.99 Retail Price:  $205.84
  13. EV9634-01 Everpure OW2 Plus Replacement Filter Cartridge

    EV9634-01 Everpure OW2 Plus Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $66.30 Retail Price:  $78.55
  14. 3US-AF01 Filtrete Undersink Filter Replacement Cartridge

    3US-AF01 Filtrete Undersink Filter Replacement Cartridge

    Fits Filtrete 3US-AS01, 3US-PS01, and Whirlpool WHCF-SUF, WHCF-SUFC water filter systems Learn More
    $25.99 Retail Price:  $26.44
  15. 3US-PF01 Filtrete Undersink Filter Replacement Cartridge

    3US-PF01 Filtrete Undersink Filter Replacement Cartridge

    Fits Filtrete 3US-AS01, 3US-PS01, and Whirlpool WHCF-SUF, WHCF-SUFC water filter systems Learn More
    $39.99 Retail Price:  $43.69
  16. FQSLF GE SmartWater Undersink Filter Set

    FQSLF GE SmartWater Undersink Filter Set (2 Filters)

    Fits GE SmartWater undersink filter systems Learn More
    $38.99 Retail Price:  $47.60
  17. GXULQ GE Undersink Filter System
  18. GXULQR GE Undersink Water Filter Replacement Cartridge

    GXULQR GE Undersink Water Filter Replacement Cartridge

    Fits the GE GXULQ and GNULQ Systems Learn More
    $41.99 Retail Price:  $43.69
  19. CBF1-S-05 OmniFilter Undersink Filter System

    CBF1-S-05 OmniFilter Undersink Water Filtration System

    Engineered to fit standard 1/2-inch NPS supply threads Learn More
    $73.99 Retail Price:  $88.54
  20. P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More
    $23.99 Retail Price:  $31.84
  21. QC10-EP Pentek Undersink Quick-Change Filter System

    QC10-EP Pentek Quick-Change Filter System

    Regular Price: $29.99

    Special Price: $27.05

  22. QC10-EPR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-EPR Pentek Quick-Change Replacement Water Filter Cartridge

    Fits any Pentek Quick-Change Series water filtration system heads Learn More
    $23.99 Retail Price:  $27.70
  23. MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge

    MAXETW-FF20 Watts C-MAX Whole House Water Filter Cartridge

    Fits 20-inch x 4.5-inch water filtration system housings Learn More
    $70.99 Retail Price:  $74.74
  24. Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    Fits the Whirlpool WHAF-0335AB Filtration System Learn More
    $36.99 Retail Price:  $43.34
  25. WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    Fits the Whirlpool WHAF-0335AB Filtration System Learn More
    $48.99

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