The Black Diamond 20-gallon vertical air compressor is great from the do-it-yourselfer to the farm and professional user.- 120V/240V dual voltage (factory wired for 120V)- Heavy duty induction motor for maximum performance and efficiency- Quick-set regulator- Tank and tool pressure gauges- On-Off switch- Handle and attached wheels make for easy portability- Twin cylinder cast iron vertical- Oil lubed provides quiet operation- Single stage- Easily accessible oil fill- Working pressure of 105-135 PSI- 159lbs- 34-1/4" x 23-1/4" x 35-1/2