This item allows you to connect a 25mm MDPE water supply pipe to a garden hose outlet. The kit includes a backplate that provides a watertight compression connection for your water pipe and has three screw holes for secure attachment to a post, wall, or fence. Once the backplate is secured, you can attach the easy-turn flow control valve using some of the supplied PTFE tape on the thread, ensuring an upright, leak-free installation. Then, screw on the solid brass 1/2" hose barb, and once this is secure, your setup is ready to use.