Press fittings are used in plumbing to join pipes and other plumbing components together. They are designed to provide a fast and reliable method of making leak-free connections without the need for soldering, brazing or any other heating method.

A press-fit fitting typically consists of two main components: the fitting body and the sleeve or ferrule. The fitting body is attached to the pipe and the sleeve is attached to the end of the pipe and then crimped using a specialized tool.