The Gardena Premium Water Stop in a top-quality, robust metal and plastic design makes it easy to quickly and conveniently connect and switch devices at the hose end. There is no need to walk to the tap to switch connection units. As soon as the spray nozzle, sprayer or spray lance is disconnected the water flow is interrupted, and only starts again once a new watering accessory is connected to the hose. Integrated kink protection prevents the hose slipping out. The longer metal locking nut ensures a particularly strong hose hold. Grooved recessed grips of soft plastic make for exceptionally comfortable handling. This product is supplied with a 5 year warranty. SpecificationsDiameter: 1/2" / 12.5mm