If your job site or rental fleet requires 900 cfm at up to 125 psi, then the Rotair D900C is for you. Identical to our D800HC, the Rotair is rated at lower pressure/higher volume. If you think that a good ROI on big air compressors is a thing of the past, you need to give us a call, because we can help! There is no better 900 cfm class air compressor for the money than the Rotair D900C. Quiet, powerful, reliable.