Replacement Filters
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3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, pH, and KDF 55
$199.00Replacement or upgrade for standard Big Blue systems Sediment filter pH filter KDF 55 filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Sediment filter removes a wide range of dirt and particulate, increasing water clarity...RFK3-4520-SDPH55$199.00 -
2 Stage Big Blue Filter Kit 4.5" x 20" Radial Flow Carbon and Scale Prevention
$229.00Replacement or upgrade for standard Big Blue systems Radial Flow Carbon filter Phosphate Scale Prevention filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters.The radial flow carbon offers 20-micron sediment filteration as well...RFK2-4520-RFPO$229.00 -
2 Stage Big Blue Filter Kit 4.5" x 20" Activated Alumina and Bone Char
$289.00Replacement or upgrade for standard Big Blue systems Activated Alumina filter Bone Char Carbon filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Activated alumina is commonly used to reduce lead, arsenic, and fluoride. Bone...RFK2-4520-AABC$289.00 -
Arsenic 4.5" x 10" Replacement Filter
$209.00Arsenic Removal Filter Big Blue 4.5-inch x 10-inch High arsenic removal capacity Minimal flow restriction Standard 4.5-inch x 10-inch filter size Big Blue 10" filter with ASM resin offers excellent removal of Arsenic with less flow restriction...AS-4510$209.00 -
LayneRT 4.5" x 10" Replacement Filter
$209.00LayneRT Arsenic Removal Filter Big Blue 4.5-inch x 10-inch High arsenic removal capacity Minimal flow restriction Standard 4.5-inch x 10-inch filter size Big Blue 10" filter with LayneRT resin offers excellent removal of Arsenic with less...RT-4510$209.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment Filter & LayneRT
$259.00Replacement or upgrade for standard Big Blue systems Sediment filter - 5-micron LayneRT filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. The initial sediment filter reduces sand, sediment, dirt, and other particulates. The...RFK2-4520-SDRT$259.00 -
Big Blue 20-inch Nitrate Filter - Aries AF-20-3610-BB
$279.00Nitrate/nitrite reduction filter Aries brand - made in the USA Standard 4.5-inch x 20-inch filters Aries AF-20-3610-BB Standard Big Blue filter fits standard 4.5-inch x 20-inch housings. Nitrate filter reduces nitrates and nitrites in the water,...NT-4520$279.00 -
Big Blue 20-inch Pleated Sediment Filter
$27.0020" Big Blue 5 micron sediment filter Product Features Pleated for high flow and great holding capacity Removes particulates 4.5" x 20" standard big blue replacement size Fits Big Blue housings used on some whole house filter systems Removes...SD-4520-PL50$27.00 -
20-inch Big Blue DI Filter
$88.00Replacement filter set for the 2 stage Big Blue 20" filter system includes two DI filters. Product Features 20" Big Blue DI Big Blue Deionization filter for ultra pure water Common Size Filters Fits Big Blue 20" filter housings. The...DI-4520$88.00 -
Portable RO Mikro Gamma Filter Kit
$33.00This filter set is designed for the Mikro Epsilon portable RO system. The inline filters work with most reverse osmosis systems available as well, and includes an inline GAC filter and an inline Calcite pH filter, both with 1/4" quick-connect fittings...PFK-Gamma$33.00 -
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 -
3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, pH, and Bone Char
$249.00Replacement or upgrade for standard Big Blue systems Sediment filter pH filter Bone Char Carbon filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Sediment filter removes a wide range of dirt and particulate, increasing...RFK3-4520-SDPHBC$249.00 -
2 Stage Big Blue Filter Kit 4.5" x 20" Sediment and pH
$109.00Replacement or upgrade for standard Big Blue systems Sediment filter pH filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Sediment filter removes a wide range of dirt and particulate, increasing water clarity. The pH filter...RFK2-4520-SDPH$109.00 -
2 Stage Big Blue Filter Kit 4.5" x 20" Dual Bone Char
$309.00Replacement or upgrade for standard Big Blue systems Dual Bone Char Carbon filters Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Bone char carbon is typically used to reduce fluoride, arsenic, radioactive isotopes, iron, lead,...RFK2-4520-BCBC$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