Seaflo Automatic Bilge Pump 750 GPG 12-24v Voltage：12V / 24V Flow Rate：750 GPH Outlet Dia：3/4" (19mm) Application Scenarios：Marine Seaflo 750GPH Automatic Submersible Boat Bilge Water Pump.All-in-one pump & float switch. No additional float switch required. Pump turns on when water level rises & shuts off when water is removed.