Replacement Filter Kits
Now offering yearly filter replacement subscriptions!
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3 Stage High Flow Filter Kit 4.5" x 20" Sediment, pH, and Bone Char
$269.00Replacement or upgrade for standard 20" systems that utilize 4.5"x20" filter cartridges Sediment filter pH filter Bone Char Carbon filter Standard 4.5-inch x 20-inch filters Sediment filter removes...RFK3-4520-SDPHBC$269.00 -
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...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)...MICRO-FK$89.00 -
Microline Reverse Osmosis RO Water Filter Set with 50 GPD Membrane
$139.00All filters are genuine replacements. Filter kit includes the following: (1) S7025 - Microline Granulated Activated Carbon Cartridge (1) S7028 - Microline Sediment/Carbon Block Cartridge (1)...MICRO-FILTERMBKIT$139.00 -
20-Inch 2 Stage Filter Kit - Sediment & AdEdge Bayoxide E33 Filter Cartridges
$229.00This comprehensive kit includes a high-performance sediment filter and the advanced AdEdge E33 Bayoxide filter, providing superior protection against harmful contaminants. Designed as a replacement...RFK2-4520-SD33$229.00 -
20-Inch High-Flow 2 Stage Filter Kit with Sediment Filter & LayneRT Filters - For Arsenic Filtration
$279.00Transform your water purification system with the 20-inch High Flow 2 Stage Filter Kit featuring a sediment filter and LayneRT technology. This superior filtration system is the ideal solution for...RFK2-4520-SDRT$279.00 -
20-inch High Flow 3 Stage Filter Kit with Sediment, Carbon Block, and Nitrate Filters
$356.00Replacement or upgrade for standard 20" systems that utilize 4.5"x20" filter cartridges Sediment filter - 5-micron Carbon block filter Nitrate filter Standard 4.5-inch x 20-inch filters The initial...RFK3-4520-SDCBNT$356.00 -
3 Stage High Flow Filter Kit 4.5" x 20" pH, KDF 55, and KDF 85
$313.00Replacement or upgrade for standard 20" systems that utilize 4.5"x20" filter cartridges pH filter KDF 55 filter KDF 85 filter Standard 4.5-inch x 20-inch filters The pH filter is calcite based and...RFK3-4520-PH5585$313.00 -
20-inch High Flow 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" High Flow Sediment Filter TheRFK3-4520-SDCBPb$239.00