These New Pfeiffer MVP 020-3AC Membrane Pump, 1.2 m3/hr (0.7 cfm) at 60 Hz has an excellent ultimate pressure of 1.5 Torr. These pumps run extremely quite. The inlet includes a 1 meter foreline hose and G1/4 connector for connection to turbo or other vacuum applications. These pumps include and on/off switch and can operate on dual voltage/dual frequency (voltage selector switch will need to be set for appropriate voltage operation) 1-Phase 90-126/180-254 VAC 50/60 HZ. They are ideally suited for employment as backing pumps for Pfeiffer Vacuum Turbopumps and for integration into compact systems. This pump is a 3-stage diaphragm pump with optimized pumping speed and ultimate pressure. This pumps are used for pumping of dry an noncorrosive gasses. The complete specifications and operating instructions manual can be download below in PDF format.