Replacement Filters
Now offering yearly filter replacement subscriptions!
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Portable RO Mikro Epsilon 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-Epsilon$33.00 -
Slimline 2.5-inch by 20-inch Bone Char Carbon Filter - Reduces or Removes Fluoride, Arsenic, Radioactive Particles, and Toxic Metals
$149.00Experience unparalleled water purification with the Slimline 2.5-inch by 20-inch Bone Char Carbon Filter, designed to significantly improve the quality of your drinking water. This powerful filter reduces or removes harmful contaminants such as fluoride,...BC-2520$149.00 -
2 Stage Filter Kit 4.5" x 20" - Sediment & Catalytic Carbon
$139.00Transform your water quality with the 2 Stage Filter Kit 4.5" x 20" Sediment and Catalytic Carbon. These filters are designed to enhance your drinking water experience by effectively removing contaminants and ensuring crystal clear clarity. Crafted as a...RFK2-4520-SDCC$139.00 -
2 Stage Bone Char Carbon Filter Kit 4.5" x 20" - Advanced Dual Bone Char Filtration for Pure Water
$329.00The 2 Stage Dual Bone Char Carbon Filter Kit 4.5" x 20" is the ultimate solution for those looking to replace or upgrade their standard 20" filtration systems. Designed with advanced filtration technology, this kit ensures that your water is free from...RFK2-4520-BCBC$329.00 -
20-inch GAC Filter
$34.00The 20" GAC filter can be used to replace a current filter or upgrade from the carbon block filter. The filter measures 2.5-inch in diameter and 20-inch long and fits all standard 20-inch housings. Product Features GAC Granular activated...GC-2520$34.00 -
10-inch Green Carbon Filter for Triton RO DI 22150
$22.00Earth 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-2510-22150$22.00 -
Replacement Alkalinity pH Booster Filter Cartridge for Nelsen Reverse Osmosis Twist Loc System
$78.00Twist-Loc Alkalinity replacement filter cartridge. This is used in Nelsen Twist Loc RO systems. You can add this filter onto your system to achieve alkaline water and raise your pH level of your drinking water. This filter would be installed after the...Twist-Alkalinity$78.00 -
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 -
2 Stage Neutralizing Filter Kit 4.5" x 20" for Sediment & pH Balance
$109.00Experience crystal-clear water with the 2 Stage Filter Kit, designed to enhance your home’s water quality. This powerful filtration system combines a sediment filter and a pH filter to provide you with pH balanced water for drinking, cooking, and...RFK2-4520-SDPH$109.00 -
2 Stage Neutralizing Filter Kit 4.5" x 20" - pH Neutralizer Calcite Filter & GAC with KDF 55 Filter
$169.00Transform your water filtration system with the 2 Stage Filter Kit 4.5" x 20" pH and KDF 55, designed for optimal performance and enhanced water quality. This filter kit serves as a powerful replacement or upgrade for standard 20" filtration systems,...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 -
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 -
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 2 Stage Filter Kit - Sediment & Nitrate Filtration
$303.00This comprehensive filter kit serves as a reliable replacement or upgrade for standard 20" filtration systems, ensuring you have the finest water for your family. With a dual-stage approach, it tackles both sediment and nitrate contaminants effectively...RFK2-4520-SDNT$303.00 -
Microline Reverse Osmosis RO Water Filter Set
$89.00All filters are genuine replacements. Filter kit includes the following: (1) S7025 - Microline Granulated Activated Carbon Cartridge (1) S7028 - Microline Sediment/Carbon Block Cartridge (1) S7206W-JG - Microline Inline 6" Cartridge with John Guest...MICRO-FK$89.00