The Custom 21063-150-000 1.5 X 1.5 High Temperature Union is a reliable plumbing pipe fitting designed for high temperature applications. It features a 1.5" MIP (Male Iron Pipe) connection on one end and a 1.5" SKT (Socket) connection on the other end, allowing for easy installation. This union is specifically designed to withstand high temperatures, making it suitable for use in hot water systems or other high-temperature plumbing applications. The Custom 21063-150-000 1.5 X 1.5 High Temperature Union is a durable and efficient solution for your plumbing needs.