This high-quality outlet kit is designed for water butts, rain barrels, and water tanks with a pre-drilled 21mm hole. The kit includes an adaptor and a durable, nickel-plated brass tap with a lockable lever. The adaptor fits securely through a 21mm hole or can thread into an existing female 1/2" connection. Installation involves inserting the adaptor, adding washers, and securing with a lock nut for a watertight seal. The tap operates with a simple lever mechanism and can be locked in place. It features a hose barb for connecting a standard 1/2" garden hose. This kit offers a reliable and user-friendly solution for accessing water from your water harvesting system.