Replacement Filters
Now offering yearly filter replacement subscriptions!
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3 Stage Big Blue Filter Kit 4.5" x 20" pH, KDF 55, and KDF 85
$309.00Replacement or upgrade for standard Big Blue systems pH filter KDF 55 filter KDF 85 filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. The pH filter is calcite based and neutralizes acid (ph <7) in the water. The KDF 55...RFK2-4520-PH5585$309.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment Filter & AdEdge E33
$229.00Replacement or upgrade for standard Big Blue systems Sediment filter - 5-micron AdEdge E33 filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. The initial sediment filter reduces sand, sediment, dirt, and other particulates...RFK2-4520-SD33$229.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, Carbon Block, and Nitrate Filters
$356.00Replacement or upgrade for standard Big Blue systems Sediment filter - 5-micron Carbon block filter Nitrate filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. The initial sediment filter reduces sand, sediment, dirt, and...RFK3-4520-SDCBNT$356.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, Carbon Block and Matrikx Pb1 Filters
$239.00Replacement filter set for 3 stage Big Blue 20" filter system. Includes the sediment, carbon block, and Matrikx Pb1 filters. Product Features 20" BB Sediment Filter The 5 micron sediment filter is a 100% polypropylene filter that contains...RFK3-4520-SDCBPb$239.00 -
10-inch Green Carbon Filter for Small Boy 22110
$24.00Earth friendly green carbon filter manufactured through a process requiring less energy than standard carbon filters Product Features Green Carbon Block Manufactured process uses reduced heat and byproduct recycling for an earth friendly...CB-2510-22110$24.00