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Replacement Filters

Replacement Filters

Now offering yearly filter replacement subscriptions!

  • RO Zoi Zeta Pure Filter Kit

    RO Zoi Zeta Pure Filter Kit

    $119.00
    Filter set fits standard 6-stage AK drinking water RO systems Product Features 10" 5µ Sediment 5 micron sediment filter for particulate 10" GAC Granular activated carbon for chloramine, tastes, and odors 10" Carbon Block 5-10 micron...
    DFK-Zeta
    $119.00
  • 20-inch Big Blue 3 Stage Filter Kit with CatCarb/KDF 85, Activated Alumina, and Sediment Filters

    20-inch Big Blue 3 Stage Filter Kit with CatCarb/KDF 85, Activated Alumina, and Sediment Filters

    $289.00
    The 5 micron sediment filter is a 100% polypropylene filter containing graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The GAC/KDF 85 filter contains 4.0 lbs. of KDF-85 media,...
    RFK3-4520-85AASD
    $289.00
  • Big Blue 10-inch Carbon Filter 5-micron

    Big Blue 10-inch Carbon Filter 5-micron

    $49.00
    Big Blue 10" Carbon Block Filter (replaces CABBB10) Product Features 5µ Carbon Block Solid carbon for removal of chlorine, tastes, odors, and chemicals Replaces CABBB10 Identical product, updated part number Big Blue 10" Fits Big...
    CB-4510-5
    $49.00
  • 20-inch Big Blue 3 Stage Filter Kit with GAC/KDF 55, Activated Alumina, and Sediment Filters

    20-inch Big Blue 3 Stage Filter Kit with GAC/KDF 55, Activated Alumina, and Sediment Filters

    $259.00
    The 5 micron sediment filter is a 100% polypropylene filter contains graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The GAC/KDF 55 filter contains 4.0 lbs. of KDF-55 media, along...
    RFK3-4520-SD55AA
    $259.00
  • 20-inch Big Blue 3 Stage Filter Kit with Sediment, Activated Alumina, and Radial Flow Carbon Filter

    20-inch Big Blue 3 Stage Filter Kit with Sediment, Activated Alumina, and Radial Flow Carbon Filter

    $235.00
    The 5 micron sediment filter is a 100% polypropylene filter containing graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The activated alumina filter removes lower levels of both...
    RFK3-4520-SDAARF
    $235.00
  • Big Blue 10-inch Empty Cartridge Shell

    Big Blue 10-inch Empty Cartridge Shell

    $22.00
    The Big Blue 10-inch empty cartridge shell allows you to make your own custom whole house filter to treat exactly what you want in your water. Or, you can save money and refill it after the media is exhausted several times over. It includes the shell,...
    EC-4510
    $22.00