Specifications: Air Consumption - ft3/min: 22 Air Inlet Thread N.P.T. - in: 1/4 Average Air Consumption - m3/min: 0.6 Capacity (Wheel Size)- in: 2 1/2 Capacity (Wheel Size)- mm: 63.5 Free Speed - rpm: 14600 Noise Level - dB(A): 95 Overall Length - in: 10 23/32 Overall Length - mm: 272 Rated Horse Power - w: 412 Weight - lb: 3.08