Imperial Cerametix 7" Ceramic Contaminant and Fluoride FilterCeraMetix GF is an advanced ceramic gravity filter designed for high performance water purification in Sertodo copper water filtration systems. Featuring a wide 2. 75 inch ceramic shell with a carbon core, this filter delivers faster flow rates and a longer service life than slimline alternatives, while accommodating systems that hold two filters at a time. Engineered without activated alumina for fluoride filtration, CeraMetix GF provides broad