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Water Filters & Air Filters Brands

Whether you’re looking to replace your inline water filter or trying to find the best air purifiers, we can help you by providing quality filters for less. Discount Filter Store offers the top filter brands, such as PUR, Honeywell, and ZeroWater to help make sure that you have worry-free water. Our helpful experts are also here to make sure you find the filter you need. Give us a call at 1-800-277-3458, and we’ll answer your filter questions from reverse osmosis water filtration systems to air humidifiers, to get you to the product you need.

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  1. AFCB Frigidaire Refrigerator Air Filter

    AFCB Frigidaire Refrigerator Air Filter

    Designed to fit into all PureAir equipped refrigerator models by Frigidaire Learn More
    $9.99 Retail Price:  $13.79
  2. W385-PR American Plumber Undersink Compact Filter System
  3. W5CIP478 American Plumber Undersink Compact Filter Replacement Cartridge (2-Pack)
  4. WGC478 American Plumber Undersink Compact Filter Replacement Cartridge

    WGC478 American Plumber Undersink Compact Filter Replacement Cartridge

    Fits American Plumber WGC478 Learn More
    $13.99 Retail Price:  $14.94
  5. C-2 Culligan RV Filter Replacement Cartridge (2-Pack)

    C-2 Culligan RV Filter Replacement Cartridge (2-Pack)

    Fits Culligan US-316 and most 4 7/8-inch x 2 1/2-inch size water filters Learn More
  6. GAC-5 Pentek Replacement Filter Cartridge

    GAC-5 Pentek Replacement Filter Cartridge

    Fits most housings that accept standard 5-inch x 2.5-inch water filter cartridges Learn More
    $14.99
  7. P5-478 Pentek Undersink Filter Replacement Cartridge

    P5-478 Pentek Undersink Filter Replacement Cartridge

    Fits any standard housing that uses 5-inch x 2 1/2-inch replacement filter cartridges Learn More
    $6.99 Retail Price:  $8.15
  8. R30-478 Pentek Undersink Filter Replacement Cartridge

    R30-478 Pentek Undersink Filter Replacement Cartridge

    Fits Pentek housings that use compact 4 7/8-inch x 2 5/8-inch replacement filter cartridges Learn More
    $8.99 Retail Price:  $12.75
  9. PX05-4-78 Purtrex Replacement Filter Cartridge

    PX05-4-78 Purtrex Replacement Water Filter Cartridge

    For use in filtration system housings that accept 2.5-inch x 5-inch replacement filters Learn More
    $2.99 Retail Price:  $5.74
  10. 01-250-125-050 KX Technologies Replacement Filter Cartridge

    01-250-125-050 KX Technologies Replacement Filter Cartridge

    Fits most standard housings that accept 5-inch filters Learn More
  11. 32-250-125-050 KX Technologies Replacement Filter Cartridge

    32-250-125-050 KX Technologies Replacement Filter Cartridge

    Fits most standard housings that accept 5-inch filters Learn More
    $10.99
  12. C2 Pentek Undersink Filter Replacement Cartridge

    C2 Pentek Undersink Filter Replacement Cartridge

    Fits in compact 5-inch water filter housings Learn More
    $7.99 Retail Price:  $8.84
  13. CBC-5 Pentek Undersink Filter Replacement Cartridge

    CBC-5 Pentek Undersink Filter Replacement Cartridge

    Fits in compact 5-inch water filter housings Learn More
    $9.99 Retail Price:  $16.55
  14. EP-5 Pentek Replacement Filter Cartridge

    EP-5 Pentek Replacement Filter Cartridge

    Fits most housings that accept standard 5-inch x 2.5-inch water filter cartridges Learn More
    $6.99
  15. CB-25-0505 Hydronix Replacement Carbon Water Filter

    CB-25-0505 Hydronix Replacement Carbon Water Filter

    Sized 4 7/8 inches by 2.75 inches, 5 micron Learn More
    $4.99 Retail Price:  $8.04
  16. SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    SDC-25-0501 Hydronix Sediment Water Filter Cartridge

    1 micron filter, sized 5 x 2.5 inches Learn More
    $6.99 Retail Price:  $9.34
  17. SDC-25-0510 Hydronix Sediment Water Filter Cartridge

    SDC-25-0510 Hydronix Sediment Water Filter Cartridge

    10 micron filter, sized 2 1/2 x 4 7/8 inches Learn More
    $5.99 Retail Price:  $8.34
  18. P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    Sized 4 7/8 x 2 1/2 inches Learn More

    Regular Price: $4.99

    Special Price: $2.55

  19. P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    Sized 4 7/8 x 2 1/2 inches Learn More

    Regular Price: $5.99

    Special Price: $2.05

  20. P5-478 Pentek Comparable Sediment Water Filter by Tier1

    P5-478 Pentek Comparable Sediment Water Filter by Tier1

    Fits standard filter housings using 5 x 2.5-inch filters Learn More
    $4.99 Retail Price:  $7.99

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