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. SPC-45-1001 Hydronix Pleated Sediment Water Filter

    SPC-45-1001 Hydronix Pleated Sediment Water Filter

    9 7/8 inches by 4.5 inches. Fits filtration systems that use Liquatec SPF-45-1001, Pentek 255489-43 and Watts FM-BB-10-1 water filters Learn More
    $20.99 MSRP:  $27.99
  2. SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    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
    $17.99 MSRP:  $18.39
  3. W50PEHD American Plumber Comparable Whole House Water Filter by Tier1
  4. CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter

    Advanced Water Products CMB-510-HF Whole House Filter for IHS12-D4 System

    Made for the Trojan UV Max IHS12-D4 Water Disinfection System Learn More
  5. CMB-510-HF Viqua Sediment Whole House Filter

    CMB-510-HF Viqua Sediment Whole House Filter

    Fits most 10 x 4.5-inch filter housings including the Viqua IHS12-D4 water disinfection system Learn More
    $16.99 MSRP:  $19.34
  6. W50PEHD American Plumber Comparable Filter by Tier1 (6-Pack)
  7. Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Accepts standard 10 x 4.5-inch filters Learn More
    $59.99 MSRP:  $75.99
  8. Hydronix SDC-45-1020 Sediment Filter Cartridge

    SDC-45-1020 Hydronix Whole House Replacement Sediment Filter Cartridge

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

    As Low As $13.50 Per Filter

  9. Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge

    SPC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge

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

    As Low As $12.00 Per Filter

  10. Hydronix SPC-45-1020 Pleated Sediment Water Filter

    SPC-45-1020 Hydronix Pleated Sediment Water Filter (10 in x 4.5 in, 20 Micron)

    Fits into systems that use the Liquatec SPF-45-1020, Pentek 255491-43 and Watts FM-BB-10-20 water filters Learn More

    As Low As $18.00 Per Filter

  11. Hydronix SPC-45-1030 Sediment Water Filter - Pleated

    SPC-45-1030 Hydronix Pleated Sediment Water Filter

    Sized 9 7/8 inches by 4.5 inches, 30 micron Learn More

    As Low As $16.16 Per Filter

  12. SDC-45-1050 Hydronix Pleated Water Filter

    SPC-45-1050 Hydronix Polypropylene Spun Water Filter

    9 7/8 inches by 4.5 inches, 50 micron, fits systems that use American Plumber WW50PEHD, Liquatec SPF-45-1050, Pentek 255492-43, Pentek 155053-43, Pentek R50-BB and Watts FM-BB-10-50 water filters Learn More

    As Low As $11.66 Per Filter

  13. DGD-2501-20 Pentek Whole House Sediment Filter

    Pentek DGD-2501-20 Sediment Water Filter Cartridge Replacements

    Fits most housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $21.67 Per Filter

  14. DGD-2501 Pentek Whole House Water Filter

    Pentek DGD-2501 Whole House Water Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $9.60 Per Filter

  15. DGD-5005 Pentek Whole House Filter Cartridge

    Pentek DGD-5005 Whole House Water Filter Replacement Cartridge

    Fits Pentek Big Blue and other heavy-duty filter housings Learn More

    As Low As $15.00 Per Filter

  16. DGD-7525 Pentek Whole House Sediment Filter

    Pentek DGD-7525 Whole House Sediment Water Filter Cartridge Replacement

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

    As Low As $12.00 Per Filter

  17. Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    Fits most Big Blue housings that accept 20-inch x 4.5-inch water filter cartridges Learn More

    As Low As $23.00 Per Filter

  18. Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-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 $12.83 Per Filter

  19. Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

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

    As Low As $11.39 Per Filter

  20. 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

  21. 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

  22. EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

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

    As Low As $22.00 Per Filter

  23. Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-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 $23.00 Per Filter

  24. NCP-BB Pentek Whole House Water Filter
  25. EPM-BB Pentek Comparable Carbon Whole House Water Filter

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1

    Fits most 10 x 4.5-inch filter housings Learn More

    As Low As $16.16 Per Filter

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