Professional model. Sprays enamel, lacquer, stain, or acrylic for customizing and restoring automobiles, trucks, and motorcycles. Nonbleeder, siphon feed . External mix. For use with a pressurized paint tank. Requires 6.8 SCFM at 40 P.S.I. 1 quart canister (included). Minimum horsepower required to operate for intermittent use: 3.5 HP. This product can expose you to chemicals including lead which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov -