The PT Coupling Coupler is a rugged aluminum connector designed for 3-inch pipes. It features a Type D connection on one end and a Female NPT (FNPT) connection on the other. This coupler is hard-coated for enhanced durability and has a 2.88-inch inner diameter 5.46-inch outer diameter and 3.5-inch length. It includes 9.56-inch extended cam arms made of hS 316 Stainless Steel and comes with a zinc pin and ring for secure fastening. It's a reliable choice for various pipe connections requiring strength corrosion resistance and durability.