Push-fit fitting for the connection of plastic, copper, and CPVC pipe. Designed, manufactured and assembled by John Guest Speedfit. A must for any tool bag. The unique feature of the Speedfit Concept, the ability to disconnect the fitting at will, means that the End Cap provides a leak proof seal and can be removed at any stage in order to allow work to restart or allow an extension to the system. This makes the fitting the perfect tool for when water needs to be turned back on, overnight for instance, or if a job suffers an interruption. End Caps are also useful when pressure testing a system before appliances are connected. Simply push the fitting fully on to the pipe. Should the need arise to demount the connection push the collet towards the body of the fitting and pull the pipe to release.