The push-fit brass chrome plated service valve for the connection of plastic and copper pipe. It has been designed, manufactured and assembled in the UK by John Guest Speedfit. A must for any dwelling. The valve allows the user to stop the flow of water to a tap in case of emergency or repair via a 1/4 turn of a screw on the valve. To install, simply push the valve fully on to the pipe and connect the tap connection on to a male thread. Should the need arise to demount the connection push the collet towards the body of the fitting and pull the pipe to release. Installation can be reduced by around 40% against traditional fixing methods.