The INFICON QS5 Vacuum Pump is designed for quick, deep evacuation as well as affordability and durability. The QS5 is a two-stage, rotary vane pump with 5 CFM rated displacement for ultimate vacuum down to 15 microns. Features such as a large oil sight glass, easily accessible oil drain and innovative oil-trapping exhaust/demister allow technicians to make easier, more efficient service calls.