Professional model. Sprays enamel, lacquer, stain, or acrylic for customizing and restoring automobiles, trucks, and motorcycles. Nonbleeder, siphon feed gun. 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.