Seaflo Automatic Bilge Pump 1100 GPG 12-24v Voltage：12V / 24V Flow Rate：1100 GPH Outlet Dia：1-1/8" (29mm) Application Scenarios：Marine Seaflo 1100GPH 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.