This is an outlet valve designed for water storage containers such as a water butt, rain barrel, or water storage tank. To install this valve, a 26mm hole is required. The valve provided is a 3/4" BSP female-to-female threaded full-flow lever valve, made from durable PVC, featuring a removable twist handle to restrict access to your water supply. Included with the valve is a universal click hose connector that is compatible with other quality hose connector brands. To install the adapter on your container, simply remove the nut and washer, insert the valve through the hole, then replace the washer and nut from the inside, tightening until the washer compresses. This valve ensures smooth and leak-free operation, making it easy and convenient to use your water storage container.