The HCP twin countertop filter is a freestanding filter system for countertop use, which is readily attached to an existing faucet via a diverter valve. Housing is molded from acetal and polyester materials. The system allows filtered or unfiltered water to be drawn from the existing faucet. This system is designed for cold water use only. It comes with 1 Ceramatix filter that removes/reduces a wide range of contaminants and a fluoride/heavy metal reducing element. The Cerametix filter will fit in Aquacera countertop water filters The CeraMetix 10" W9512600 water filters are designed for use in countertop water filter systems. These filters utilize our silver impregnated microporous ceramic shell and our AquaMetixTM Granular Media. AquaMetixTM is our exclusive unique blend of proprietary ceramic and carbon technology with Activated PAC media, coupled with our ceramic shell these filters offer the highest quality drinking water possible from a single stage filter. The filtering capacity on average is one year, depending on water quality. The CeraMetix W9512600 filter is manufactured to remove suspended solids, pathogenic bacteria, cysts, organic chemicals and improve taste and odor. The ceramic is silver impregnated to prevent bacteria growth and is self-sterilizing. The ceramic shell is manufactured to balance flow rate and consistent pore size in order to provide maximum filtration efficiency. The center of the filter contains our AquaMetix granular media to reduce organic chemicals, fluoride, VOC's, heavy metals and improve the color, taste, and odor of drinking water. AquaMetix® is a unique technology designed to provide the highest quality drinking water possible from a single stage block filter. AquaMetix® will reduce a wide variety of drinking water contaminants of both aesthetic and health concern. This same technology is used inside our CeraMetix® range of ceramic filter elements. NSF 61 Certified materials > 99% Chloramine reduction