Modular designed Busch oil-sealed rotary vacuum pump is single stage, air-cooled (requiring no water), and direct driven (no belts or gears). It features a simple design for easy installation and low maintenance, quiet and continuous operation, and easy exhaust filter change. it has TEFC motor, NPT inlet, exhaust pressure gauge, anti-suckback valve, built-in exhaust filter, non-metallic and non-asbestos vane, vibration isolators, automotive type spin-on oil filter, and oil level sight glass. The unit is 230/460V, with 15HP Baldor motor. The nominal pumping speed is 305 ACFM, 330 CFM free air displacement, .5 Torr ultimate pressure, 1175 RPM motor rotational speed, and 14 quart oil capacity. FOB Lake City, PA.