The EMAX Industrial 13HP Honda GX390 3-Cycle MAXFLO 2 Stage 33CFM @100PSI 30 Gal. Industrial Solid Cast Iron Air Compressor is a groundbreaking innovation in compressed air technology. With high 33CFM output and a 30 Gal. horizontal certified ASME air tank, you have a heavy-duty industrial compressor with a small footprint, right in the back of your truck or trailer. Equipped with a unique 2-stage Y design, 3-cylinder solid cast iron pump with Industrial ceramic disc valves and solid steel rods, for extended 50,000 hours pump life, MAXFLO compressors feature a cutting-edge new pump technology that significantly reduces energy waste. This compressor produces up to 30% more air delivery per Horsepower. A breakthrough re-engineered pump design that is built to last, insures your compressor starts the first time and every time. For unstoppable performance that exceeds all others, MAXFLO Technology is the right choice. Maintenance is low cost, simple, and made easy. Keeping your filters and oil changed is all that is required, saving hundreds and even thousands of dollars when compared to the maintenance schedule for a rotary screw type compressor.