QUOOKER The Tap that does it all 100°C boiling, hot, cold.. and now also cold filtered drinking water A True Revolution... The new kitchen must-have. Quooker: the tap that immediately dispenses boiling water. Tap on the worktop, tank underneath. A 100% Dutch invention taking over the world. You can choose between a separate boiling water tap with accompanying mixer tap, or the Quooker Flex or Fusion: a single tap for hot, cold and boiling water. Ultra-safe, super-efficient and available in eight tap designs and three finishes.