A John Guest Speedfit Drain Cock Push-Fit fitting is used for connecting plastic and copper pipe. To lock the fitting in place, merely fully engage the pipe with the fitting before rotating the plastic nut counter clockwise. Should the need to remove the connection occur, just unlock the nut, move the collet closer to the fitting's body, and pull the pipe to release. The fitting enables an easier working environment in small spaces and eliminates the need for hot work on the job site. Installation time can be cut by about 40 percentage compared to conventional fixing techniques.