Una-Dyne, 3 HP Vacuum Pump

Busch, 1.5 HP Rotary Vacuum Pump

Busch, 1.5 HP Vacuum Pump, vane rotary type, RA0025.E546.1002, displacement 20 CFM, vacuum 1.5 torr, 230/460 volt 1740 RPM

Edwards, Vacuum Pump model E2M-0.7, 2 stage, single phase 60/110-120 volt 0.6 CFM, general lab purpose design

Nash, 20 HP Liquid Ring Vacuum Pump model CL203, 200 CFM at 27″ mercury vacuum, carbon steel construction, 230/460 volt motor on base