Diamond Selection 5265 Portable Oil Dispensing System, 17 Gal Wheel-mounted Tank, 3:1 Ratio Pump Dispensing 3.7 GPM At 90 PSI, Maximum Air Pressure 110 PSI, Air Consumption 12 CFM At 100 PSI, Digital Meter (1504), 13’ Delivery Hose w/ 1/2” Diameter, 3” Front & 6” Rear Wheels w/ Ball Bearings