... .Voltage:220-240V 50Hz 3.Pattern:Energy effcient of motor Air PumpModel:NBF0818A1.Streamlined compact design-attractive and simple to install ... .With special design of impeller,air flow is smoother.3.With infinitely variable on the base,low noise,energy effcient.4.Quiet,safe ... ,piblic pool water amusement park,seawater,industrial,tent,big balloon,air-filled toy,rubber dinghy etc.