Replacement Filters
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 -
RO Zoi Gamma Pure Filter Kit (incl. UV bulb)
$79.00This filter set is designed for the Zoi Gamma 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 GAC taste &...DFK-Gamma$79.00 -
RO Zoi Kappa Pure Filter Kit (replaces ROFK8)
$93.00Filter set fits standard 7-stage DI+pH drinking water RO systems. Includes sediment, carbon, GAC, inline DI, inline pH and inline post filter. Product Features Replaces ROFK8 Identical product, updated part number 10" 5µ Sediment 5...DFK-Kappa$93.00 -
10-inch AdEdge AD2710S Filter - Reduces Arsenic (V) and (III)
$84.90AdEdge AD2710S filter reduces both prevalent types of arsenic, (V) and (II), and fits standard filter housings. Product Features AdEdge Bayoxide® E33 filter Filled with 100% AdEdge Bayoxide® E33 media for best results. Reduces...AE-2510-AD2710S$84.90 -
Big Blue 20-inch GAC/KDF 55 Filter
$99.00The 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-4520-55$99.00 -
RO Zoi Xi Pure Filter Kit (incl. UV Bulb)
$139.00This filter set is designed for the Zoi Xi 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-Xi$139.00 -
Big Blue 20-inch pH Filter
$89.00The Big Blue 20" pH filter contains a blend of calcite and corosex that dissolves slowly in water to neutralize acid. It also contains GAC for optimal flow and treatment of tastes and odors. Product Features pH Filter This filter is designed...PH-4520$89.00 -
RO Zoi Mu Pure Filter Kit
$129.00This filter set is designed for the Zoi Mu 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 alkaline filter,...DFK-Mu$129.00 -
20-inch x 2.5-inch Slimline 3 Stage Filter Kit with Sediment & Two Carbon Block Filters
$79.00Replacement filter set for 3 stage slimline whole house filter system. Includes two carbon block filter and sediment filter. Filters need replaced at least once a year, every 6 months is average for most homes. Product Features 20" Sediment...RFK3-2520-SDCBCB$79.00 -
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 -
RO Zoi Theta Pure Filter Kit (incl. UV Bulb)
$109.00This filter set is designed for the Zoi Theta 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 pH filter, an...DFK-Theta$109.00 -
RO Zoi Zeta Pure Filter Kit
$119.00Filter set fits standard 6-stage AK drinking water RO systems Product Features 10" 5µ Sediment 5 micron sediment filter for particulate 10" GAC Granular activated carbon for chloramine, tastes, and odors 10" Carbon Block 5-10 micron...DFK-Zeta$119.00 -
Big Blue 10-inch AdEdge Bayoxide® E33 Filter for Arsenic
$129.00The Big Blue 20" AdEdge Bayoxide E33 filter is used to reduce arsenic. The filter measures 4.5-inch in diameter and 20-inch long and fits all standard 20-inch Big Blue housings. Product Features AdEdge Bayoxide® E33 Industry leading...AE-4510-E33$129.00 -
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 -
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