Discreet stylish and powerful the instanta 12 litre ucd12 under counter water boiler is designed to be plumbed in under counter units to maximise space on your bar or serving area supplied with an attractive robust stainless steel dispensing unit the ucdb12 uses a simple push button dispensing mechanism which can either dispense measured amounts or up to 28 litres per hour of free flow piping hot water electronically controlled to provide constant temperatures of 98c with minimal steam e