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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 31 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. 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

  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. ELF-1M Omnipure Replacement Filter Cartridge

    ELF-1M Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF permanent filter heads Learn More
    $22.99 Retail Price:  $28.74
  12. ELF-1ML Omnipure Replacement Filter Cartridge

    ELF-1ML Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF permanent filter heads Learn More
    $31.99 Retail Price:  $40.24
  13. ELFXL-1M Omnipure Replacement Filter Cartridge

    ELFXL-1M Omnipure Replacement Filter Cartridge

    Fits Omnipure ELF permanent filter heads Learn More
    $36.99 Retail Price:  $44.84
  14. 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
  15. 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
  16. 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
  17. 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
  18. OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge

    OMB934-1L Omnipure Alpha Series Undersink Filter Replacement Cartridge

    Fits any brand of undersink or whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $16.99 Retail Price:  $21.38
  19. Q5515 Omnipure Water Filter

    Q5515 Omnipure Water Filter

    $17.99 Retail Price:  $20.34
  20. 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
  21. Q5615 Omnipure Replacement Filter Cartridge

    Q5615 Omnipure Replacement Filter Cartridge

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $29.99 Retail Price:  $34.49
  22. Q5615-P Omnipure Replacement Filter Cartridge

    Q5615-P Omnipure Replacement Filter Cartridge

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $28.99 Retail Price:  $36.79
  23. Q5620 Omnipure Replacement Filter Cartridge

    Q5620 Omnipure Replacement Filter Cartridge

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $19.99 Retail Price:  $25.29
  24. Q5620-P Omnipure Replacement Filter Cartridge

    Q5620-P Omnipure Replacement Filter Cartridge

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $23.99 Retail Price:  $29.89
  25. ELF-1M-P-KDF Omnipure Water Filter Cartridge

    ELF-1M-P-KDF Omnipure Water Filter Cartridge

    Fits residential and commercial water filtration systems that use the Everpure H-300-R water filter cartridge Learn More
    $34.99 Retail Price:  $37.34

Items 1 to 25 of 31 total

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