KX Matrikx 32-250-125-975 Chlorine Taste and Odor Filter Cartridge, 10-Inch Manufactured using FDA-compliant materials Filter consists of activated carbon particles fused into a uniform block with enhanced adsorptive capacity and efficiency Radial flow (outside-to-inside) filtration provides increased dirt-holding capacity with low pressure drop Color coded molded one-piece gasket and end cap Manufactured using FDA-compliant materials NSF/ANSI Standard 42 and WQA Gold Seal certified