KX Matrikx KX-MATRIKX-CR1-10 Cyst, Chlorine Taste and Odor Reduction Filter, 10-Inch Outstanding Chlorine Taste and Odor Reduction 0.5 m Nominal Filtration Color coded molded one-piece gasket and end cap Manufactured using FDA-compliant materials NSF/ANSI Standard 42 and WQA Gold Seal certified