Professional grade water pump with new power magnetic vortex rotor blade technology. Drive shaft is made of hardened ceramic and runs on ceramic bearing inside the impeller. Compact pump with more output power, only comparable to an external MD water pump. Energy effecient water pumps, with excellent gallons of water flow per watt of power used. Can be used for water circulation and comes with all attachments to operate as a main filtration pump. 550 gallons per hour. 30 watts. Maximum head - 6.5 foot. Output tubing size - 3/4 inch.