This 12-inch Low Profile Primary Shutoff with a 4-inch HB Aluminum Lid is made in the USA by NVE. This durable shutoff features a 4-inch Buna ball seat, a wingnut closure, 10-inch corrosion resistant stainless steel ball cage, and a 5/8-inch square Buna gasket. It includes a stainless float ball, a hose barb connection, and a weldable carbon steel neck.