The Pentek TSGAC 10" Combination Carbon/Phosphate filter is a water filtration cartridge that combines the benefits of carbon and phosphate filtration in one unit. The carbon component reduces chlorine, chloramines, and other dissolved organic compounds, while the phosphate component helps to prevent the buildup of scale and corrosion. The filter has a length of 9 3/4 inches and is designed to fit into standard 10-inch filter housings. It is typically used in residential and commercial water filtration applications.