Short Description:The PT Coupling CF1200430 is a 3-inch cam and groove coupler with a Type D connection on one end and a 3-inch FNPT (Female National Pipe Thread) connection on the other. Constructed from brass, it measures 2.88 inches in inner diameter, 5.46 inches in outer diameter, and 3.5 inches in length, with cam arms that extend to an outer diameter of 9.56 inches. It is suited for agriculture, construction, oil and gas, mining, steel processing, and railroad applications.