JG Speedfit Stop End 22mm is a push-fit fitting used for the connection of plastic and copper pipe for central heating systems and both hot and cold water systems. The stop end provides a leak proof seal and can be disconnected easily if needed. It is useful for when water needs to be turned on and when pressure testing a system before appliances are connected. It has a grip and seal connection that won’t cause scale to build up and is lead free and non-toxic.