If you need a small, quiet source of vacuum or pressure, you'll find the unit for your application in the Gast line of oil less diaphragm air compressors and vacuum pumps. These pumps are available in single- and dual-head styles. Airflow capabilities for the entire line range from 0.65 L/min up to 3.8 cfm (6.5 M3/hr), vacuum up to 29 in. Hg (31 mbar), and pressure up to 60 PSIG (4.2 bar). electric motors are available in dual frequency, shaded pole, and permanent split capacitor (PSC) versions, as well as AC multi-voltages for worldwide applications. What's included: a 6-ft (1.8-M) three-wire cord with us standard plug. Free-air capacities up to 2.2 cfm (62.3 L/min) shaded-pole, fan-cooled motor has thermal overload switch to protect your pump system different pump models have heads in parallel for higher capacity or Series for greater vacuum Select pumps with or without gauges, regulators, and valves runs dry.