The Zip Miniboil Classic is a sleek, compact, mini sized model offering you all the convenience of instant boiling & ambient (room temperature) filtered drinking water where space is at a premium. A great option for the budget conscious who doesn't want to compromise on space, technology or quality. The under-sink control cabinet has an externally mounted sub micron filter cartridge, it is remarkably compact, and can easily fit into small under-sink cupboards. A great added feature to any home!