Speedfit Female Coupler - Tap Connector 15mm x 1/2".

The female coupler is a push-fit plastic fitting made for the connection of plastic and copper pipe. Designed, manufactured and assembled in the UK by John Guest Speedfit. To install, simply push the fitting fully onto the pipe and twist the plastic nut clockwise to lock in place. Should the need arise to demount the connection unlock the nut and push the collet towards the body of the fitting and pull the pipe to release.