DBSOV
The Dramm Brass Shut-Off Valve is designed to provide fingertip water control at the end of your garden hose. Save time and water! A quarter-turn of the large ergonomic handle and the water is off. Crafted from brass, stainless steel, and Teflon seals, beware of cheap imitation products.
There are many copy-cat Dramm products on the market. In order to ensure you are buying a top-quality product, look for the "Dramm" name on the handle.