Replacement Filters
Now offering yearly filter replacement subscriptions!
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Big Blue 20-inch Catalytic Carbon Filter
$99.00The 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$99.00 -
Inline 3/8-inch Carbon Taste & Odor Post Filter - 2-inch x 10-inch
$29.00Inline Carbon Taste & Odor Post Filter w/ 3/8-inch Quick Connect Fittings Product Features GAC Granular activated carbon inline filter is great for removal of chlorine, chloramine, tastes, odors, and chemicals Taste & Odor Post Filter Standard...GC-2010-38Q$29.00 -
20-inch Big Blue 2 Stage Filter Kit with Activated Alumina & Radial Flow Carbon
$199.00Replacement filter set for the 2 stage Big Blue 20" filter system includes activated alumina filter and radial flow carbon. The activated alumina filter removes removes fluoride, lead, and arsenic from your water without adding anything harmful. The...RFK2-4520-AARF$199.00 -
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 -
CanPro 4-cartridge system with KDF85 and Fleck 2510/5600 adapter
$139.00CanPro 4-cartridge system with KDF85 and Fleck 2510/5600 adapterCanPro-4F-85$139.00 -
10-inch Pb1 0.5-micron Carbon Filter for Lead, VOC and Cyst Reduction
$27.00For chlorine, taste, odor, VOC, Cyst and lead reduction 0.5 micron nominal filtration Formulated for cyst and heavy metal reduction Low pressure drop Matrikx Pb1 filter powered by GreenBloxk is make from 100% coconut shell carbon. Designed...CB-2510-Pb1$27.00 -
20-inch GAC/KDF 55 Filter
$59.00The 20" GAC/KDF 55 filter can be used to replace a current filter or upgrade from the carbon block filter or standard GAC filter. The KDF 55 media enables the filter to remove heavy metals, including lead, mercury, and iron. The filter measures 2...GC-2520-55$59.00 -
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 -
2 Stage Big Blue Filter Kit 4.5" x 20" Bone Char and Radial Flow Carbon
$229.00Replacement or upgrade for standard Big Blue systems Bone Char Carbon filter Radial Flow Carbon filter Standard 4.5-inch x 20-inch filters Replacement Big Blue filters. Bone char carbon is typically used to reduce fluoride, arsenic, radioactive...RFK2-4520-BCRF$229.00 -
Big Blue 10-inch Sediment Filter - 1-micron
$29.0010" Big Blue 1 micron sediment filter Product Features 1µ Removes particulates as small as 1 micron Big Blue 10" Fits Big Blue housings used on some whole house filter systems Removes sediment Traps dirt, sand, and...SD-4510-1$29.00 -
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 -
Big Blue 20-inch Empty Cartridge Shell
$26.00The Big Blue 20" empty cartridge shell allows you to make your own custom whole house filter to treat exactly what you want in your water. Or, you can save money and refill it after the media is exhausted several times over. It includes the shell,...EC-4520$26.00 -
Big Blue 20-inch GAC/5# KDF 55 Filter
$139.00The Big Blue 20" GAC/KDF 55 filter can be used to replace a current filter or upgrade from the carbon block filter or standard GAC filter. The KDF 55 media enables the filter to remove heavy metals, including lead, mercury, and iron. The filter...GC-4520-555$139.00 -
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 -
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