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. Removable strainer for easy replacement or in the event that the pump becomes clogged with debris. Anti-Airlock protection. Exclusive moisture tight seals,sompletely submersible, marine grade blocked wiring. Silent and vibrationless operation. Availalble for DC 12 Voltage & 24 Voltage.