The Dab VERTY NOVA 400 M 110V is a single phase domestic submersible drainage pump. The Dab NOVA is a submersible drainage pump designed for the home. It is well suited to draining cellars and basements that regularly flood. Because it is small and light, it can be kept at home for emergency situations as part of a flooding kit. It can also be used for draining swimming pools and has uses in the garden. Each model has a level switch for automatic operation - the pump can be installed in a location prone to flooding and set to automatically switch when there is water to pump, and automatically switch off when finished.