The PT Coupling Coupler is a durable aluminum connector designed for 3/4-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 0.88-inch inner diameter 2.11-inch outer diameter and 2.1-inch length. It includes 4.51-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 and corrosion resistance.