Discount Water Filters and Air Filters at Discount Filter Store.com

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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.

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Items 26 to 50 of 224 total

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  1. P-250 Pentek Comparable Under Sink Water Filter Set by Tier1

    P-250 Pentek Comparable Under Sink Water Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  2. P-250A Pentek Comparable Under Sink Filter Set by Tier1

    P-250A Pentek Comparable Under Sink Filter Set by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  3. WHKF-DB1 Whirlpool Comparable Under Sink Water Filter by Tier1

    WHKF-DB1 Whirlpool Comparable Under Sink Water Filter by Tier1

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More

    As Low As $0.00 Per Filter

  4. WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1

    WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1

    Fits most whole house water filter systems that uses standard 10 x 2-1/2 filter cartridges Learn More
  5. FQSVF / FQSLF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    FQSVF / FQSLF GE SmartWater Undersink Water Filter Replacement Cartridge Set By Tier1

    Fits GE SmartWater undersink filter systems Learn More
    $36.99 MSRP:  $83.99
  6. FQK2J GE SmartWater Undersink Water Filter Replacement Cartridge Set by Tier1

    FQK2J GE SmartWater Undersink Water Filter Replacement Cartridge Set by Tier1

    Fits GE SmartWater undersink filter systems Learn More

    As Low As $0.00 Per Filter

  7. FQK2J GE Undersink Water Filter Set

    FQK2J GE Undersink Water Filter Set

    Fits GE SmartWater undersink filter systems Learn More
    $49.98 MSRP:  $49.99
  8. SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    SWC-45-1001 Comparable Hydronix String-Wound Sediment Water Filter by Tier1

    10 inches by 4.5 inches, 1 micron. Fits most 10-inch Big Blue filter housings and replaces Liquatec SWF-45-1001, Pentek 355213-43 and Watts SF1-10-425 water filters. Learn More
  9. Culligan D30 Comparable Carbon Block Whole House Water Filter by Tier1

    Culligan D30 Comparable Carbon Block Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More
    $11.99 MSRP:  $36.99
  10. CBR2-10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    CBR2-10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  11. Floplus 10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    Floplus 10 Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  12. D-30 Culligan Comparable Carbon Block Whole House Water Filter by Tier1

    D-30 Culligan Comparable Carbon Block Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  13. CBR2-10R Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    CBR2-10R Pentek Comparable Carbon Block Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  14. FXULC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1

    FXULC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  15. CHLORPLUS-10 Pentek Comparable Whole House Water Filter by Tier1

    CHLORPLUS-10 Pentek Comparable Whole House Water Filter by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  16. WHKF-GAC Whirlpool Whole House Filter Replacement Cartridge by Tier1
  17. D-40 Culligan Comparable Undersink Water Filter Replacement Cartridge by Tier1

    D-40 Culligan Comparable Undersink Water Filter Replacement Cartridge by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  18. FXSVC GE SmartWater Comparable Undersink Filter Set by Tier1

    FXSVC GE SmartWater Comparable Undersink Filter Set by Tier1

    Fits various brands of under-sink housings, including GE Learn More

    As Low As $0.00 Per Filter

  19. CB1-SS6-S06 OmniFilter Comparable Undersink Water Filter Cartridge by Tier1

    CB1-SS6-S06 OmniFilter Comparable Undersink Water Filter Cartridge by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  20. MAXETW-975 Watts Comparable C-MAX Replacement Water Filter Cartridge by Tier1

    MAXETW-975 Watts Comparable C-MAX Replacement Water Filter Cartridge by Tier1

    Fits into most industry standard 10-inch water filtration system housings Learn More

    As Low As $0.00 Per Filter

  21. CB3-SS6-06 OmniFilter Comparable Undersink Filter Replacement Cartridge by Tier1

    CB3-SS6-06 OmniFilter Comparable Undersink Filter Replacement Cartridge by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  22. FXUTC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1

    FXUTC GE SmartWater Comparable Undersink Filter Replacement Cartridge by Tier1

    Fits standard sized housings that take 10 x 2-1/2 inch replacement filters Learn More

    As Low As $0.00 Per Filter

  23. FX12P GE SmartWater Comparable Reverse Osmosis Filter by Tier1

    FX12P GE SmartWater Comparable Reverse Osmosis Filter by Tier1

    Fits GE SmartWater reverse osmosis filter systems with model numbers starting with PNRV12, GXRV10, or GXRM10 Learn More

    As Low As $11.99 Per Filter

  24. W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    Fits Doulton HIP, HIS and HCPS housings (NOT gravity-fed) Learn More
    $35.00 MSRP:  $73.99
  25. Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    Standard 10 inch by 2.5 inch size fits many under sink filter housings Learn More
    $22.99 MSRP:  $24.71

Items 26 to 50 of 224 total

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