Big Blue Filter Kits
Now offering yearly filter replacement subscriptions!
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20-inch Big Blue 2 Stage Filter Kit
$89.00Replacement filter set for 2 stage Big Blue 20-inch filter system. Includes the carbon block filter and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features Replaces...RFK2-4520-SDCB$89.00 -
10-inch Big Blue 2 Stage Filter Kit
$59.00Replacement filter set for 2 stage Big Blue 10" filter system. Includes the carbon block filter and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features Replaces...RFK2-4510-SDCB$59.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment & GAC/KDF 55 Filters
$129.00Replacement filter set for the 2 stage Big Blue 20" filter system includes sediment filter and GAC/KDF 55 filter. The sediment filter removes removes sand, sediment, and particulates. The GAC/KDF 55 removes chloramines, tastes, odors, chemicals, and...RFK2-4520-SD55$129.00 -
20-inch Big Blue 2 Stage Filter Kit with Sediment Filter & Catalytic Carbon/KDF-85 Filter
$179.00The 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 Catlytic Carbon/KDF-85 filter contains 4.0 lbs. of KDF-85...RFK2-4520-SD85$179.00 -
20-inch Big Blue 3 Stage Filter Kit with CatCarb/KDF 85, Activated Alumina, and Sediment Filters
$289.00The 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,...RFK3-4520-85AASD$289.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, Activated Alumina, and Radial Flow Carbon Filter
$235.00The 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-SDAARF$235.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, GAC, and Carbon Block Filters
$166.00Replacement filter set for 3 stage Big Blue 20" filter system. Includes the carbon block filter, GAC (granular activated carbon) filter, and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes...RFK3-4520-SDGCCB$166.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, GAC/KDF55, and Carbon Block Filters
$169.00Replacement filter set for 3 stage Big Blue 20" filter system. Includes the carbon block filter, GAC/KDF55 filter, and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features 20"...RFK3-4520-SD55CB$169.00 -
20-inch Big Blue 3 Stage Filter Kit with Sediment, GAC/KDF 85, and Radial Flow Carbon
$245.00The 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-SD85RF$245.00 -
3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, KDF85, Bone Char
$279.005-micron sediment filter Reduces dirt and particulates Catalytic carbon/KDF85 filter Reduces rotten egg odor, as well as a wide range of tastes, odors, and chemicals Bone char carbon filter Reduces arsenic, fluoride, and radioactive...RFK3-4520-SD85BC$279.00 -
20-inch Big Blue 3 Stage Filter Kit with GAC/KDF 55, Activated Alumina, and Sediment Filters
$259.00The 5 micron sediment filter is a 100% polypropylene filter contains graded density that provides higher dirt holding capacity than standard spun polypropylene and string wound cartridges. The GAC/KDF 55 filter contains 4.0 lbs. of KDF-55 media, along...RFK3-4520-SD55AA$259.00 -
3 Stage Big Blue Filter Kit 4.5" x 20" Sediment, Bone Char, Radial Flow Carbon
$249.00Replacement filter set for the 3 stage Big Blue 20" filter system includes sediment, bone char and radial flow carbon filters. Product Features 20" BB Sediment Filter The 5 micron sediment filter is a 100% polypropylene filter contains graded...RFK3-4520-SDBCRF$249.00 -
20-inch Big Blue 2 Stage Filter Kit with Activated Alumina & Carbon Block
$179.00Replacement filter set for the 2 stage Big Blue 20" filter system includes activated alumina filter and carbon block. The activated alumina filter removes removes fluoride, lead, and arsenic from your water without adding anything harmful. The carbon...RFK2-4520-AACB$179.00 -
3 stage big blue filter kit 4.5" x 20" sediment, bone char, carbon block
$244.003 Stage Big Blue Replacement Filter Kit Sediment, carbon block, and bone char 5-micron sediment filter 5-micron carbon block filter Bone char filter Reduces sediment Reduces a wide range of tastes, odors, and chemicals Reduces fluoride, arsenic,...RFK3-4520-SDCBBC$244.00 -
20-inch Big Blue 2 Stage Filter Kit with Activated Alumina & Sediment Filter
$159.00Replacement filter set for the 2 stage Big Blue 20" filter system includes activated alumina filter and carbon block. The activated alumina filter removes removes fluoride, lead, and arsenic from your water without adding anything harmful. The carbon...RFK2-4520-AASD$159.00