Here's what I have. I'm not a full time bodyshop, just spare time hobby. I used this for body work, cabinet sandblasting, and painted my truck with it. Mine also has a built in dryer mounted on it but I paid way less than this is advertised for! Brand new about 3 1/2 yrs ago. Works great, never gets moisture in lines with the built in dryer.
http://www.factoryauthorizedoutlet.com/ir/products/2475N75.asp?rt=2