The Liberty Pumps P382LE51/A2 is a, 1/2 HP, 115 volts, sewage pump with an alarm. The Pro380-Series is a large capacity shallow system design featuring a 24" x 24" basin - perfect for bedrock and difficult soil conditions. The Pro380-Series offers a large 41 gallon capacity and longer pump cycles for extended pump life. The Pro380-Series sewage package arrives from the factory pre-assembled with QuickTree Technology saving valuable labor time at the job site. This model includes an alarm with pre-mounted alarm floats. Give the P382LE51/A2 a try and see why more contractors are demanding Liberty.