This set is designed to facilitate the drainage of water from a water butt, rain barrel, or water storage tank with a 26mm hole. The kit comprises two components: the adaptor and the tap. Crafted from solid brass, the adaptor features a 3/4" BSP thread that passes through the prepared hole and is secured from the back using the provided nut and one of the two supplied washers. Once in place, the tap can be threaded into the female connection