The PT Coupling CF1000425 is a 2.5-inch cam and groove coupler with a Type D connection on one end and a 2.5-inch FNPT (Female National Pipe Thread) connection on the other. Constructed from lightweight aluminum, it measures 2.38 inches in inner diameter, 4.43 inches in outer diameter, and 3.4 inches in length, with cam arms that extend to an outer diameter of 8.03 inches. It is suited for construction, oil and gas, and transportation applications.