www.waterfilters.netKX-Matrikx-32-250-125-050-Water-Filter-Cartridge.htmlbr The KX Matrikx + CTO2 32-250-125-050 water filter is a 5 micron carbon block designed to remove chlorine taste & odor, as well as organic and inorganic chemicals that contribute to taste and odor while also providing the sediment filtration and dirt-holding capacity of an efficient 5 micron nominal sediment filter.