Diapraghm Vacuum Pump 38 LPM^ Diapraghm Vacuum Pump with a displacement capacity of 38 liters/minute. For use with CentriVap Vacuum Concentrators. Not for RapidVap Evaporators. 115V 50/60 Hz. Dimensions: 12x13x16in, Application: CentriVap Concentrators, CentriVap Mobile Systems