Replacement Filters
Now offering yearly filter replacement subscriptions!
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Big Blue 20-inch Catalytic Carbon/5# KDF 85 Filter
$179.00The Big Blue 20" Catalytic Carbon/KDF 85 filter can be used to replace a current filter or upgrade from the carbon block filter or standard GAC filter. The KDF-85 media enables the filter to remove iron AND hydrogen sulfide. Paired with the catalytic...CC-4520-855$179.00 -
Big Blue 20-inch Matrikx Pb1 Lead Filter
$159.00The Matrikx Pb1 filter provides 0.5 micron nominal filtration along with reduction of lead, chlorine, cyst, heavy metals and a wide range of chemicals. Filter is ~4.5"x20" and fits standard Big Blue filter housings Product Features Matrikx 0.5...KX-4520-Pb1$159.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment and Bone Char
$189.00Standard 4.5-inch x 20-inch filters 5 micron sediment filter Bone char carbon filter Reduced sediment, tastes, odors, chemicals, fluoride, arsenic, radioactive particles, and most trace heavy metals Typically lasts 6-12 months in most...RFK2-4520-SDBC$189.00 -
RO Zoi Iota Pure Filter Kit (incl. UV Bulb)
$159.00This filter set is designed for the Zoi Iota Pure system. The standard size filters work in most reverse osmosis systems available as well, and includes a 5 micron sediment filter, a GAC filter, a 5 micron carbon block filter, an inline alkaline filter,...DFK-Iota$159.00 -
20-inch AdEdge Bayoxide® E33 Filter for Arsenic
$189.00The Big Blue 20" AdEdge Bayoxide E33 filter is used to reduce arsenic. The filter measures 4.5-inch in diameter and 20-inch long and fits all standard 20-inch Big Blue housings. Product Features AdEdge Bayoxide® E33 Industry leading...AE-2520-E33$189.00 -
3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, pH, Radial Flow Carbon
$169.005-micron sediment filter pH neutralizing filter Radial flow carbon filter Standard 4.5-inch x 20-inch size Replacement filter kit for 3-stage Big Blue systems includes a sediment filter for dirt and particulates, pH filter for acidic water, and a...RFK3-4520-SDpHRF$169.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment & Matrikx Pb1 Filters
$179.00Replacement filter set for the 2 stage Big Blue 20" filter system includes sediment and Matrikx Pb1. Product Features 20" BB Sediment 5 micron Big Blue sediment filter for sand, sediment, and particulates 20" BB Matrikx Pb1 0.5 Micron...RFK2-4520-SDPb$179.00 -
20-inch Big Blue 2 Stage Filter Kit with Dual DI Filters
$169.00Replacement 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 Second 20" Big Blue DI Second Big Blue Deionization filter for...RFK2-4520-DIDI$169.00 -
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 -
2 Stage Big Blue Filter Kit 4.5" x 20" pH and KDF 55
$169.00Replacement or upgrade for standard Big Blue systems pH filter KDF 55 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 filter is...RFK2-4520-PH55$169.00 -
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