This John Guest Speedfit 22 x 15mm reducer is a push-fit plastic fitting designed for the connection of plastic and copper pipe. To connect, simply push the fitting fully onto the pipe and twist the plastic nut clockwise to lock in place. Where demounting is required the nut is unlocked and the collet pushed towards the body of the fitting before pulling the pipe to release. This fitting is easy to work with in confined places and removes the need for hot works on site, reducing installation time by about 40% compared to traditional fixing methods.