Replacement Filters
Now offering yearly filter replacement subscriptions!
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20-inch pH Filter Slimline
$39.00The 20" pH filter contains calcite that dissolves slowly in water to neutralize acid. It also contains GAC for optimal flow and treatment of tastes and odors. Product Features pH Filter This filter is designed to treat low pH levels found in...PH-2520$39.00 -
20-inch Big Blue 2 Stage Filter Kit - Sediment and Nitrate
$303.00Replacement or upgrade for standard Big Blue systems Sediment filter - 5-micron Nitrate 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-SDNT$303.00 -
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 -
Slimline 2.5-inch by 20-inch Bone Char Carbon Filter - Reduces or Removes Fluoride, Arsenic, Radioactive Particles, and Toxic Metals
$139.00Bone Char Carbon The bone char carbon filter reduces or removes fluoride, arsenic, radioactive isotopes, iron, lead, mercury, aluminum, silver, bromine, manganese, and more. Plus, it removes chemicals, tastes & odors, chlorine,...BC-2520$139.00 -
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 -
2 Stage Big Blue Filter Kit 4.5" x 20" Activated Alumina and Bone Char
$309.00Replacement 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$309.00 -
LayneRT 4.5" x 10" Replacement Filter
$229.00LayneRT 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$229.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment Filter & LayneRT
$279.00Replacement 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$279.00 -
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 -
LayneRT 4.5" x 20" Replacement Filter
$269.00LayneRT Arsenic Removal Filter Big Blue 4.5-inch x 20-inch High arsenic removal capacity Minimal flow restriction Standard 4.5-inch x 20-inch filter size Big Blue 20" filter with LayneRT resin offers excellent removal of Arsenic with less flow...RT-4520$269.00 -
Replacement Filter Kit for Vertex 5 Stage Pure Water Machine Platinum Certified Systems, FK-101
$60.00Replacement kit for Vertex 5 stage Pure Water Machine RO systems Includes: 1 - 5 micron sediment filter 2 - US made carbon block filters 1 - Inline GAC post filter 3 - O-rings 1 - Filter housing wrench Filters should be changed at least once a year...DFK-PT505$60.00 -
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
$269.00Replacement 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$269.00