The GARDENA "Profi" Maxi-Flow System Waterstop Connector is ideal in connection with longer hoses or for use with pumps. It serves as a connector for the accessory end of the hose for connection with 13 mm (1/2") hoses with coupling (Art. No. 931) and functions based on the simplest principle: disconnect and the water stops automatically, connect and the water flows. Thanks to this practical mechanism, the often annoying and far trip to the tap to turn water on or off is saved. With this connector, you can connect the Original GARDENA System to the "Profi" Maxi-Flow System.