Specifications Model: 2065-420L Material: Aluminum, Iron Surface Treatment: Spraying Assembly Required: Yes Style: Modern Color: Silver, Black Working Principle: Piston Compressor Lubrication: Oil Lubricated Air Compressor Compression Medium: Air Thread: NPT 1/2 Number of Cylinders: 2 Applicable Engine Power: 3HP Speed: 960RPM Noise: 79dB(A) Cylinder Diameter: 65mm/2.56in Theoretical Air Intake: 420L/110.95Gal/Min Effective Discharge Volume: 250L/66.04Gal/Min Working Pressure: 8Bar Maximum Pressure: 10Bar Flywheel Diameter: 26cm/10.2in Mounting Hole Size: 13.6*14.2cm/5.35*5.59in Product Size: 32*27*31cm/12.6*10.6*12.2inch Gross Weight: 11kg/24.25lbs Net Weight: 10kg/22.05lbs Packing Size: 31*27*35cm/12.2*10.63*13.78in.