Mastercool 12 CFM Vacuum Pump August 10, 2018March 6, 2017 by Jyoti Order Code : MS80 Features : Free air displacement: 340 lit/min (60 hz), 283 lit/min (50 hz) No. of stages: 2 Ultimate vacuum: 15 microns Motor: 1 hp Pump speed: 1440 RPM Electrical specs: 220 v / 50/60 hz