The GARDENA Watering Set includes a Water Stop (G913) and a GARDENA Classic Adjustable Spray Nozzle (G941). Thanks to the Water Stop at the end of hose, water is stopped automatically at disconnection, at connection it flows again. This saves a trip to the tap e.g. when nozzles need to be changes. The Water Stop is suitable for 13 mm (1/2") hoses.