Comparison : Item # CAS-2058-100-1G, Synthetic Vacuum Pump Lubricant
Item # CAS-2058-100-5G, Synthetic Vacuum Pump Lubricant
Item # CAS-2058-100-55G, Synthetic Vacuum Pump Lubricant
Item # CAS-6243-100-1G, Semi-Synthetic Vacuum Pump Fluid
Item # CAS-6243-100-5G, Semi-Synthetic Vacuum Pump Fluid