Vintage Cornelius Three Stage Air Compressor Model 32R300. I dont have a 27 volt dc power source so it is untested.It does turn easily by hand. The item "Vintage Cornelius Three Stage Air Compressor Model 32R300 27 Volts DC" is in sale since Monday, September 7, 2020. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Air Compressors & Blowers\Other Air Compressors".owens007" and is located in Hermitage, Pennsylvania. This item can be shipped to United States.