The PondMaster Deep Water Air Pumps have been designed to satisfy the requirements of a multitude of water-related applications. They are an excellent choice for ponds, large aquariums, hydroponics. aquaponics and more. All AP-Series air pumps operate on standard 110V electric and come with a 6' power cord. The non-oil lubricated motor is designed to operate efficiently and save energy. For outdoor applications, it is recommended that the unit be enclosed to protect it from the elements.