Commercial Duty Water Puppy, Flow rate: 34 litres/min (9 USgallons/min), Self-priming from dry up to 1.2m (4ft), Features: 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). . 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"