... low maintainance, low noise level, low power consumption, linear air pump Air Pump/ Air compressor / Diahpragm PumpPerformance:Voltage: 115/230 V Frequency ... weight: 4.3 kg Noise Level: 40Features:The most effecient pump / air compressor, reliable and high performanceApplications:AerationAir PurificationAir SamplingBubble ... Compression DevicesLift Station EquipmentAir Massager JDK-20 Secoh Air pump