Replacement Filters
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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 -
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 -
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 -
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 -
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 -
3 stage big blue filter kit 4.5" x 20" sediment, bone char, carbon block
$222.003 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$222.00 -
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 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 -
4-Stage Reverse Osmosis Filter Kit
$39.00This filter set is designed for the 4-stage reverse osmosis (RO) system. The standard size filters work in most reverse osmosis systems and includes a 5 micron sediment filter, a 5 micron carbon block filter, and an inline GAC taste and odor polishing...DFK-4$39.00 -
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 -
Aptera Alkamag Alkaline Filter - 2.5-inch x 10-inch
$99.00Inline Aptera Alkamag Alkaline Filter in a translucent casing for standard filter housings. 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-2510$99.00 -
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 -
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 -
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