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 1 to 25 of 29 total

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  1. Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge

    Pentek ChlorPlus-10 Whole House Carbon Block Water 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

  2. Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF 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 $4.83 Per Filter

  3. ECP5-BB Pentek Whole House Water Filter

    Pentek ECP5-BB Whole House Water Filter Replacement Cartridge

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

    As Low As $10.99 Per Filter

  4. Pentek ECP50-BB Whole House Water Filter Replacement Cartridge

    Pentek ECP50-BB Pleated Sediment Water Filter Replacement Cartridge

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

    As Low As $19.66 Per Filter

  5. EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $12.00 Per Filter

  6. Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $13.00 Per Filter

  7. NCP-BB Pentek Whole House Water Filter
  8. Pentek P1-20 Whole House Water Filter Replacement Cartridge

    Pentek P1-20 Sediment Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More

    As Low As $9.75 Per Filter

  9. Pentek P1 Polyproplyene Water Filter (10 x 2 1/2)

    P1 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 $5.60 Per Filter

  10. Pentek S1 Pleated Whole House Sediment Filter

    Pentek S1 Sediment Whole House Water Filter Cartridge Replacement

    Fits any standard water filtration system housing that uses 9 3/4-inch x 2 1/2-inch cartridges Learn More

    As Low As $5.40 Per Filter

  11. Pentek S1-BB Replacement Water Filter Cartridge

    Pentek S1-BB Water Filter Cartridge Replacement

    Fits most Big Blue housings that accept 10-inch x 4.5-inch water filter cartridges Learn More

    As Low As $5.40 Per Filter

  12. TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    Fits select reverse osmosis systems Learn More
    $24.99 MSRP:  $47.14
  13. EPM-10 Pentek Undersink Filter Replacement Cartridge

    EPM-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
    $9.99 MSRP:  $13.99
  14. GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-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
    $14.99 MSRP:  $19.99
  15. NCP-10 Pentek Undersink Filter Replacement Cartridge

    NCP-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
    $10.29 MSRP:  $15.99
  16. PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    PCF1-10MB 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
    $24.99 MSRP:  $30.69
  17. PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More
    $42.99 MSRP:  $49.67
  18. PD-50-934 Pentek Whole House Filter Replacement Cartridge

    PD-50-934 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
    $6.99 MSRP:  $8.15
  19. TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-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
    $20.99 MSRP:  $24.60
  20. WP-30 Pentek Whole House Filter Replacement Cartridge

    WP-30 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
    $6.99 MSRP:  $8.15
  21. WS-20BB Pentek Whole House Filter Replacement Cartridge

    WS-20BB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch filter cartridges Learn More
    $45.99 MSRP:  $52.08
  22. BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch filter cartridges Learn More
    $89.99 MSRP:  $144.23
  23. C1 Pentek Undersink Filter Replacement Cartridge

    Pentek C1 Undersink Water Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $14.99 MSRP:  $19.99
  24. 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
  25. CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-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
    $15.39 MSRP:  $21.99

Items 1 to 25 of 29 total

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