This product serves as an adapter, facilitating the connection between your water storage container (such as a water butt, rain barrel, or water tank) and a garden tap. It necessitates either a 1/2" BSP female thread or a 3/4" bsp thread-21mm hole or 26mm hole for installation. To install the adapter, simply remove the nut and one washer, insert it through the hole, and then reattach the nut and washer from the inside, ensuring a snug fit. This setup ensures a leak-free seal with washers both on the outer and inner sides. Afterwards, you can attach the universal male click connector to the adapter, which is compatible with various other high-quality hose connector brands.