Compact belt driven, gasoline engine powered. 165 CFM @ 0" Hg Honda® engine with electric starter. Continuous vacuum: 20" Hg, continuous pressure: 5 PSI. NOTE: The electric start system includes a battery. Does NOT include an electric clutch. Also, the flange pumps do NOT come standard with pressure capability, however, they do include a pressure rating in the event that you may add a remote 4-way valve in the future.