Flow rate: 34 Litres/min (9 gallons/min) Self-priming from dry up to 1.2m (4ft) Small bilge debris present no problem to these bronze bodied, flexible impeller pumps Simple design means fewer wearing parts ISO 8846 MARINE (Ignition protection) ISO 8849 MARINE (Bilge pump standard) Body: Bronze Impeller: Nitrile Seal: Liptype Voltage: 12 or 24 V DC Motor: Permanent magnet type, fully enclosed, stainless steel shaft, ball type shaft bearing, has adequate torque to reverse the pump Port Type: 1/2" Internal Pipe Threads, 1" External Hose Barb, Adapter for 3/4 " External Garden Hose, Thread included Dimensions: 3" x 4-3/4" x 6-7/8" Weight: 6lb.Download Technical Data Sheet here