This self-priming heavy-duty external water pump delivers outstanding reliability and performance; Low maintenance, vibration free operation. Self-priming pump. Hydraulically self-balancing impeller. Self-lubricating direct drive motor; Debris? Clog-free! Built-in removable oversized debris basket traps twigs and leaves. Inspect and clean easily thanks to clear, quick release cover; Built to last. High quality seals and bearings for long efficient motor life. Thermal sensor keeps pump from overheating