The Ingersoll Rand P185 Tow Behind Compressor There are probably tens of thousands of Ingersoll Rand P185 tow behind air compressors in use and for sale around the world. I have not been able to get any specific information on this venerable compressor from IR, except that it's a portable - being that it's a towed air compressor - and that it's supposed to provide 185 CFM of air flow when running optimally. It was appears as though Ingersoll Rand is no longer selling portable contruction compressors, preferring to manufacture and sell construction equipment like jackhammers and what not as well as industrial air compressors. 2003 Honda Shadow Spirit 750 Service Manual download free. We understand that the portable construction compressor business was sold to Doosan Portable Power. download free 2017 Fxd Repair Manual on this page. If you have information confirming this, we would apreciate an update via the comment form below. 2018 Kawasaki Meanstreak Owners Manual download.