Compact, light and aluminium die construction, with oil free piston power. Use ROCKYVAC Oil Free compressor for oxygen supply in water, agitation in fermentation tank, aeration test and bubble test. Model: ROCKYVAC 440. Power: 220V 50hz, Max Power (W): 125, Max Current (A): 0.6, Max pressure: 60 psi, Max Flow 0 psi: 25 I/min, Max Flow 20 psi: 23 I/min, Max Flow 30 psi: 18 I/min, Max Flow 40 psi: 16 I/min, Max Flow 60 psi: 11 I/min, Motor Rotation: 1400 RPM, Capacitance 3 uf 450 V, Horse Power: 1/6 HP, Net Wt. 8.4 kg, Port Thread: 5/16", Noise Level: 50 dB