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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 34 total

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  1. K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    Fits standard 1/4-inch water lines Learn More

    Regular Price: $21.99

    Special Price: $21.05

  2. WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge

    WFDWC40001 DuPont Universal Drinking Water Carbon Block Cartridge

    Fits WFDW120009W DuPont Universal Drinking Water Filter System and other brands of 10-inch standard-size filter systems Learn More
    $22.99 Retail Price:  $29.99
  3. 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
  4. Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge

    CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $18.00 Per Filter

  5. 3M Aqua-Pure AP-DW70 Undersink Filter Replacement Cartridge

    AP-DW70 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
    $47.99 Retail Price:  $56.34
  6. 3M Aqua-Pure APIL3R Inline Water Filter

    APIL3R 3M Aqua-Pure Inline Water Filter Cartridge

    Fits the 3M Aqua-Pure APIL3 inline water filtration system Learn More
    $40.99 Retail Price:  $45.41
  7. 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
  8. K00338 Manitowoc Arctic Pure Ice Maker Filter

    K00338 Manitowoc Arctic Pure Ice Maker Filter

    Fits the Manitowoc AR-10000 ice machine filter Learn More
    $66.89 Retail Price:  $79.22
  9. K00339 Manitowoc Arctic Pure Replacement Ice Maker Filter Cartridge

    K00339 Manitowoc Arctic Pure Ice Maker Filter Cartridge

    Fits the Manitowoc AR-20000 and AR-40000 ice machine filters Learn More
    $87.99 Retail Price:  $102.45
  10. K00374 Manitowoc Arctic Pure Replacement Ice Maker Filter Cartridge

    K00374 Manitowoc Arctic Pure Ice Maker Filter Cartridge

    Fits the Manitowoc AR-2800 ice machine Learn More
    $44.99 Retail Price:  $59.79
  11. E5320 Omnipure Replacement Filter Cartridge

    E5320 Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-3 Learn More

    Regular Price: $12.99

    Special Price: $11.05

  12. E5515-P Omnipure Replacement Filter Cartridge

    E5515-P Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-4 Learn More
    $25.99 Retail Price:  $31.04
  13. E5520 Omnipure Replacement Filter Cartridge

    E5520 Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-5 Learn More
    $21.99 Retail Price:  $26.44
  14. E5615 Omnipure Replacement Filter Cartridge

    E5615 Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-6 Learn More
    $26.99 Retail Price:  $40.24
  15. E5620-P Omnipure Replacement Filter Cartridge

    E5620-P Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-7 Learn More
    $20.99 Retail Price:  $31.04
  16. E5715 Omnipure Replacement Filter Cartridge

    E5715 Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-8 Learn More
    $45.99 Retail Price:  $52.89
  17. E5715-P Omnipure Replacement Filter Cartridge

    E5715-P Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-9 Learn More
    $39.99 Retail Price:  $57.49
  18. E5720 Omnipure Replacement Filter Cartridge

    E5720 Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-10 Learn More
    $33.99 Retail Price:  $36.34
  19. E5720-P Omnipure Replacement Filter Cartridge

    E5720-P Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF Series and Everpure permanent filter heads including Insurice, H-100, H-50, OCS, OCS-2, QL-2, and QL-11 Learn More
    $25.99 Retail Price:  $32.19
  20. K2515-JJ Omnipure Lead Cyst Inline Filter

    K2515-JJ Omnipure Lead Cyst Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $19.99 Retail Price:  $25.29
  21. K2520-JJ Omnipure Inline Filter

    K2520-JJ Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $18.99 Retail Price:  $24.14
  22. K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $23.99 Retail Price:  $25.29
  23. K5520P-JJ Omnipure Inline Phosphate Filter

    K5520P-JJ Omnipure Inline Phosphate Filter

    Fits standard 1/4-inch water lines Learn More
    $19.99 Retail Price:  $27.59
  24. Q5515 Omnipure Water Filter

    Q5515 Omnipure Water Filter

    $17.99 Retail Price:  $20.34
  25. Q5515-P Omnipure Replacement Filter Cartridge

    Q5515-P Omnipure Replacement Filter Cartridge

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $28.99 Retail Price:  $35.64

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