CMP Union, 1/2" MIP x 1/2" S Long | 21063-154-000CMP 21063 154 000 1 1 2 Inch MIP x 1 1 2 Inch Socket Long Hi Temp Union The CMP 21063 154 000 is a long high temperature self sealing union designed for compatible pool and spa plumbing applications. This union features a 1 1 2 inch male pipe thread connection on one side and a 1 1 2 inch socket connection with 2 inch spigot on the other, making it a practical choice for equipment connections that may need future service or disassembly. Features