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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!
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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 28 total

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  1. 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
  2. 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99 Retail Price:  $50.59
  3. 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
  4. 3US-PS01 Filtrete Undersink Filter System
  5. 3WH-HDPL-F01 Filtrete Replacement Filter Cartridge

    3WH-HDPL-F01 3M Filtrete Water Filter Cartridge

    $14.99 Retail Price:  $17.24
  6. 3WH-HD-S01 Filtrete Whole House Sump System
  7. 3WH-STDCW-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  8. 3WH-STDPL-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  9. 3WH-STD-S01 Filtrete Whole House Sump System
  10. 3WH-STDSW-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  11. 4US-MAXL-F01 Filtrete Replacement Filter Cartridge

    4US-MAXL-F01 3M Filtrete Replacement Water Filter Cartridge

    Fits 3M Filtrete High Performance Drinking Water Filtration systems Learn More
    $31.99 Retail Price:  $36.79
  12. 4US-MAXL-S01 Filtrete Single Stage Drinking Water System
  13. 4US-MAXS-F01 Filtrete Replacement Filter Cartridge

    4US-MAXS-F01 3M Filtrete Water Filter Cartridge

    Fits the 3M Filtrete High Performance Drinking water filtration system Learn More
    $20.99 Retail Price:  $25.29
  14. 4US-MAXS-S01 Filtrete Single Stage Drinking Water System
  15. 4WH-HDGAC-F01 Filtrete Replacement Filter Cartridge

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

    $33.99 Retail Price:  $41.39
  16. 4WH-HDGR-F01 Filtrete Replacement Filter Cartridge
  17. 4WH-QCTO-F01 Filtrete Replacement Filter Cartridge

    4WH-QCTO-F01 3M Filtrete Replacement Water Filter

    Fits 3M Filtrete High Performance Whole House water filtration systems Learn More
    $96.99 Retail Price:  $128.79
  18. 4WH-QCTO-S01 Filtrete Whole House Filter System
  19. 4WH-QS-F01 Filtrete Replacement Filter Cartridge

    4WH-QS-F01 3M Filtrete Replacement Water Filter

    Fits 3M Filtrete High Performance Whole House water filtration systems Learn More
    $61.99 Retail Price:  $82.79
  20. 4WH-QS-S01 Filtrete Whole House Filter System
  21. 4WH-STDGR-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  22. FAUC-RP-01 Filtrete Replacement Faucet

    FAUC-RP-01 3M Filtrete Replacement Water Faucet

    $24.99 Retail Price:  $31.04
  23. FFRF01-WH-1 Filtrete Filtrete Fast Flow Replacement Filter

    FFRF01-WH-1 Filtrete Filtrete Fast Flow Replacement Filter

    Fits the Filtrete Water Station and Filtrete Fast Flow Pitcher Learn More
    $14.39 Retail Price:  $18.85
  24. RB01-W01-2 Filtrete 16.9-Ounce Water Station Replacement Water Bottle (2-Pack)
  25. WP01-WH-12 Filtrete Fast Flow Water Filter Pitcher

Items 1 to 25 of 28 total

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