The GARDENA regulating stop is attached to the end of the hose and then ensures that the connection devices can be changed easily, especially when the water pressure is high. The adapter is suitable for 13 mm (1/2") and 15 mm (5/8") hoses. It is operated using the valve. By simply turning it, the water flow can be regulated continuously and even switched off completely. If the water flow is interrupted, the connection device can be changed at any time, which saves having to turn off the water at the tap. The regulating stop is built to a high standard so that even frost cannot harm it. The quality product is Made in Germany and GARDENA provides a five year warranty.