The Ingersoll Rand Centrifugal Air Compressors is a one of a kind component. It is a product of sheer ingenuity and brilliance. It features Constant discharge pressure, Reduces energy consumption – no over pressurization, Simplicity by design – few moving parts, Increased reliability, 100% Oil-free air - Class 0, 3rd party certified - no risk of oil carryover to process, Backward leaning impellers, Superior efficiency and excellent turndown,Full feature CMC controller,Etc. It is a definite must have for anyone who is looking for their money's worth. It also has some outstanding features such as Optimizes performance and ensures reliable operation.