The GARDENA water stop 19 mm (3/4 inch) is a practical accessory with innovative irrigation functions that attaches to the end of the hose. When you need to change a connector, the automatic water stop immediately interrupts the water flow. You can then connect a new watering accessory, such as a spray nozzle, and the water flow is restored. This eliminates the need to return to the tap. Another feature is the high pressure in the hose, achieved through a specially shaped connector nut with a Power Grip fastening for easy attachment.