Removes rainwater ponding at construction sites. Cleans out septic tanks, pumps waste water and more! Extra-low vibration and noise levels. 163cc Honda GX-160 overhead valve engine delivers dependable, efficient power. Heavy duty cast aluminum pump body and gear case make transportation easier. Rubber diaphragm and check valve are replaceable. Grease-filled gear unit is maintenance-free. 3in. inlet and outlet.