Replacement Filters
Now offering yearly filter replacement subscriptions!
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Aptera Alkamag Inline Alkaline Filter - 2.5-inch x 12-inch
$99.00Inline Aptera Alkamag Alkaline Filter in a translucent casing with quick connect fittings. This 11-stage alkaline filter alkalinizes your water and increases the pH to 8.0 or higher. Product Features Alkaline A mixture of mineral beads,...ALK-2512A-14F$99.00 -
Big Blue 10-inch Catalytic Carbon/KDF 85 Filter
$89.00The Big Blue 10" 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 heavy metals, including lead, mercury, and iron AND...CC-4510-85$89.00 -
Portable RO Mikro Delta Filter Kit (Former Psi filter fit)
$58.00This filter set is designed for the Mikro Psi (Mighty Mite w/ DI) portable RO system. The inline filters work with most reverse osmosis systems available as well, and includes an inline GAC filter, an inline sediment filter, and an inline DI filter,...PFK-Delta$58.00 -
20-inch x 2.5-inch Slimline 3 Stage Filter Kit with Sediment-GAC-Carbon Block Filters
$79.00Replacement filter set for 3 stage slimline whole house filter system. Includes carbon block, GAC and sediment filters. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features 20" Sediment...RFK3-2520-SDGCCB$79.00 -
RO Zoi Eta Pure Filter Kit (incl. UV Bulb)
$103.00This filter set is designed for the Zoi Eta Pure system. The standard size filters work in most reverse osmosis systems available as well, and includes a 5 micron sediment filter, a GAC filter, a 5 micron carbon block filter, an inline DI filter, an...DFK-Eta$103.00 -
Replacement filter kit for Green Machine RO and GRO 5 stage RO
$69.00Replacement kit for Green Machine 5 stage RO systems and GRO 5 stage RO systems. Includes: 1 - 5 micron sediment filter 2 - green block carbon block filters 1 - Inline GAC post filter 3 - O-rings 1 - Filter Housing Wrench Filters should be changed at...DFK-PT-5GR$69.00 -
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 -
10-inch Color-changing DI Filter
$39.00Standard 10" Color-changing DI Filter Product Features DI Deionization resin for removal of up to 99.9% of contaminants Color-changing Resin Color-changing resin helps to indicate when it is time to be replaced Standard 10" Common size...DI-2510$39.00 -
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 -
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 -
20-inch Big Blue 2 Stage Filter Kit with Bone Char-GAC/KDF55
$249.00Replacement filter set for the 2 stage Big Blue 20" filter system includes activated bone char and GAC/KDF55 filters. The bone char filter reduces fluoride and arsenic in your water along with a wide range of radioactive particles, tastes, and odors...RFK2-4520-BC55$249.00 -
Replacement Carbon Prefilter - For Merlin and PRF systems
$69.00Carbon Prefilter Fits Merlin and Pentair PRF systems Measures 17" x 2 3/4" The prefilter on the GE Merlin and Pentair PRF reverse osmosis systems should be changed every 6-12 months to prolong the life of the membranes.MRO-CAB$69.00 -
Big Blue 20-inch Filter for Arsenic
$229.00Arsenic Removal Filter Big Blue 4.5-inch x 20-inch style High arsenic removal capacity Minimal flow restriction Standard 4.5-inch x 20-inch filter size Big Blue filter with arsenic specific resin offers excellent removal of Arsenic with...AS-4520$229.00 -
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 -
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