The Brunnings Hose Connector Set ensures that hose fittings will not blow off the tap or hose guns. Connect this 12mm Plastic Hose Connector to your garden hose and freely remove or add spray guns, sprinklers and more, whilst water pressure is still active. The in-built stop works as a barrier between the water flow and the hose connector, allowing you to interchange items without having to stop or turn off the water flow.