220V/110V 1.8KW 300Bar 30Mpa 4500Psi Electric Air Compressor High Pressure Air Pump Pneumatic scuba diving Inflator. Charging Rate:40-50L/min;1.5-1.8cfm. Of stage and cylinder:2. Shout down:manual stop/automatic stop(for optional). Lubricating oil:ISO VG46 or AW 46 Noise:Less than 78 dB(A). Air hose connection: 8mm quick connect fitting.