Pumpmaster Koshin 1" Water Transfer Pump, 0.93hp, 1-year warranty. The SEV “Versalite” Series are all-around engine driven pumps, ideal when portability is important. These 2-stroke units are lightweight and powered by genuine KOSHIN engines. Easy to start, the Versalite Series bursts with power and performance to meet those water transfer, site pumping or firefighting needs – the uses for this Series are endless.