Replacement Filter Kits
Now offering yearly filter replacement subscriptions!
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3 stage big blue filter kit 4.5" x 20" sediment, bone char, carbon block
$244.00Experience pristine water quality with our 3 Stage Filter Kit, designed for ultimate purification and performance. This comprehensive filter system provides a powerful filtration solution for your home, optimizing your drinking water and ensuring safety...RFK3-4520-SDCBBC$244.00 -
3-Stage Activated Alumina & KDF55 Filter Kit (for DWF3-2510-SDAA55)
$79.00Replacement filter set for the DWF-3-AAKDF. Includes sediment, activated alumina, and GAC/KDF55 filters. Standard filter size fits common 10" housings. Product Features 10" 1µ Sediment 1 micron sediment filter for particulates 10"...RFK3-2510-SDAA55$79.00 -
3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, Bone Char, and Activated Alumina
$329.00Replacement or upgrade for standard Big Blue systems Sediment filter Bone Char Carbon filter Activated Alumina filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Sediment filter removes a wide range of dirt and particulate,...RFK3-4520-SDBCAA$329.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, Activated Alumina, and Carbon Block Filter
$219.00The 5 micron sediment filter is a 100% polypropylene filter containing graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The activated alumina filter removes lower levels of both...RFK3-4520-SDAACB$219.00 -
RO/DI Psarion Chi Reef Filter Kit (replaces UDIFK-2)
$90.00Filter set fits RO/DI Deluxe systems. Includes sediment, carbon, and 2 full size DI filters. Product Features Replaces UDIFK-2 Identical product, updated part number 10" 1µ Sediment 1 micron sediment filter for particulates 10" Carbon...AFK-Chi$90.00 -
2 Stage Filter Kit 4.5" x 20" - Bone Char Carbon Filter & Radial Flow Carbon Filter for Pure Water
$229.00Transform your water purification process with our 2 Stage Filter Kit, expertly designed for optimum filtration efficiency. This kit features advanced Bone Char and Radial Flow Carbon, ensuring your drinking water is free from harmful contaminants while...RFK2-4520-BCRF$229.00 -
20-inch Big Blue 2 Stage Filter Kit with Activated Alumina & KDF 55
$219.00Replacement filter set for the 2 stage Big Blue 20" filter system includes activated alumina filter and radial flow carbon. The activated alumina filter reduces or removes fluoride and arsenic in your water without adding anything harmful. The radial...RFK2-4520-55AA$219.00 -
Replacement Filter Kit for Merlin and PRF systems
$52.00Replacement Filter Kit Kit includes both the carbon prefilter and inline post filter Standard carbon prefilter measures 17" x 2 3/4" Inline post filter with 3/8" quick connect fittings measures 10" x 2 3/4" Prefilters on the Merlin and Pentair...MRO-FK$52.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, Activated Alumina, and Bone Char
$329.003-stage replacement filter kit with sediment, activated alumina, and bone char for standard Big Blue carbon filter. Product Features 20" BB Sediment Filter The 5 micron sediment filter is a 100% polypropylene filter and contains graded density...RFK3-4520-SDAABC$329.00 -
10-inch Big Blue 2 Stage Filter Kit with Radial Flow Carbon and Sediment
$68.00Replacement filter set for 2 stage Big Blue 10" filter system. Includes a radial flow carbon filter and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features 10" BB Radial Flow...RFK2-4510-RFSD$68.00 -
Twist Loc Replacement Filter Kit for Nelsen Reverse Osmosis System - 2 Sets of Replacements
$179.00Quick Change Twist & Loc RO Replacement Filter Kit - Includes two (2) TWIST-SEDIMENT and four (4) TWIST-CARBON cartridges. This will give you a total of TWO replacements for each filter.Twist-Annual$179.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, GAC/KDF 85, and Carbon Block
$239.00The 5 micron sediment filter is a 100% polypropylene filter containing graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The GAC/KDF 85 filter contains 4.0 lbs. of KDF-85 media,...RFK3-4520-SD85CB$239.00 -
2 Stage High Flow Filter Kit - 4.5" x 20" Radial Flow Carbon for Optimal Water Purification & Phosphate Scale Prevention Filter
$279.00Transform your water experience with the 2 Stage High Flow Filter Kit, designed to deliver superior filtration and scale prevention for your home or office. This kit not only enhances the quality of your water but also protects your plumbing and...RFK2-4520-RFPO$279.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment and Bone Char
$189.00Transform your home’s water quality with the 20-inch 2 Stage Filter Kit with Sediment and Bone Char. Designed for those who prioritize clean drinking water, this exceptional filter kit ensures you enjoy every sip without the worry of contaminants...RFK2-4520-SDBC$189.00 -
3 Stage Filter Kit - Sediment, pH Filter and Catalytic Carbon with KDF 85 Filters
$254.00Transform your water quality with the 3 Stage Filter Kit, expertly designed to deliver clean, refreshing water for your home. This comprehensive replacement filter kit enhances your water purification system with a sediment filter, pH filter, and...RFK3-4520-PH85SD$254.00