The GRACO FD1233 is a 1-inch sanitary air-operated double diaphragm (AODD) pump designed for hygienic applications. It features a stainless steel center section, stainless steel seats, ceramic weighted balls, and polyolefin diaphragms. This pump is intended for use in industries requiring clean, reliable, and easy-to-clean fluid transfer, such as food, beverage, and pharmaceutical processing.