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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  1. NCP-BB Pentek Whole House Water Filter
  2. C1 Pentek Comparable Whole House Carbon Water Filter by Tier1

    C1 Pentek Comparable Whole House Carbon Water Filter by Tier1

    Fits GE FXWTC, FXUSC, FXWSC and FWPC Learn More

    As Low As $0.00 Per Filter

  3. 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

  4. 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

  5. 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

  6. GS-10ALS-JG14 Pentek Comparable Inline Water Filter by Tier1

    GS-10ALS-JG14 Pentek Comparable Inline Water Filter by Tier1

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More

    As Low As $0.00 Per Filter

  7. GS-10-JG14 Pentek Comparable Inline Water Filter by Tier1

    GS-10-JG14 Pentek Comparable Inline Water Filter by Tier1

    Sized 2 x 6 inches and made with 1/4 inch FQC fittings Learn More

    As Low As $0.00 Per Filter

  8. GS-10-B Pentek Inline Filter Replacement Cartridge

    GS-10-B Pentek Replacement Inline Water Filter Cartridge

    For 1/4-inch water lines Learn More
    $11.09 MSRP:  $16.99
  9. GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    Fits onto all 1/4-inch water lines Learn More
    $12.99 MSRP:  $15.28
  10. P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    Fits various brands of under-sink housings, including Culligan, Pentek, Ametek and American Plumber Learn More
    $33.99
  11. QC10-CBR-JG14 Pentek Undersink Quick-Change Filter System
  12. QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  13. QC10-CBRR Pentek Undersink Quick-Change Replacement Filter Cartridge

    QC10-CBRR Pentek Undersink Quick-Change Replacement Filter Cartridge

    Fits any Pentek Quick-Change Series filter heads Learn More
    $22.99 MSRP:  $36.79
  14. US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $130.79 MSRP:  $179.99
  15. CBR2-10 Pentek Undersink Filter Replacement Cartridge

    CBR2-10 Pentek Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $18.99
  16. CBR2-10R Pentek Undersink Filter Replacement Cartridge

    CBR2-10R Pentek Undersink Filter Replacement Cartridge

    Fits Pentek under-sink filter housings and any housing that uses standard 9 3/4-inch by 2 1/2-inch filter cartridges Learn More
    $19.59 MSRP:  $27.99

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