The Black Diamond 1.6 RHP 30 Gallon V-Twin Vertical Air Compressor is designed for the heavy-duty professional user. Featuring a heavy-duty 1.6 RHP cast-iron, V-Twin motor that provides maximum performance and efficiency. The Black Diamond provides 155 max PSI and can operate a wide range of tools while maintaining longer run times. This compressor is constructed of thermally stable cast iron cylinder body, aluminum head and machined cast-iron valve plate for added durability.