Product description With the valve, you can easily regulate or completely shut off the water flow. When the water supply is closed, you can change the coupling on the spot and continue watering your garden, without having to walk to the tap to turn it off. Ideal for connecting to a sprinkler. By regulating the water flow, you can adjust the sprinkler's range as desired. The adapter is UV and frost resistant and can therefore be used all year round. The coupling with control valve is a true quality product, made in Europe. GARDENA offers a five-year warranty to support this top quality. The Original GARDENA System.