... volute casing for increasing endure of pump.* coupled to a reliable OHV 4 stroke gasoline engine.* the tightly fitting impeller and volute ... /T, L/C Certification(s): ISO9001 Specifications: Four-stroke OHV petrol engine Compat structure, easy to operate and carry Ideal combustion makes ... in Japan, America, Europe, Southeast Asia etc. FST-50HP GASOLINE HIGH PRESSURE WATER PUMP