JG Speedfit emergency shut off tap allows the user to stop the flow of water to a fixture or zone in the event of an emergency or repair work. Simply push the valve fully onto the pipe and turn the knob on top of the push-fit fitting to allow or restrict the flow of water. To demount the connection, push the collet towards the body of the push-fit fitting and pull the pipe to release. The JG Speedfit emergency shut off tap is quicker and easier to install in confined spaces than traditional methods as it eliminates the need for hot works or tools. Designed, manufactured and assembled in the UK.Simple hand turn of the knob instantly isolates water Install and demount in seconds without toolsSafe flame-free installation, with no hot works, glue or fluxGrip & Seal collet with stainless steel teeth and main O-Ring sealCompatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipeSuitable for hot and cold water (not suitable for central heating systems).