ARKSEN Vacuum Chamber (2 Gallon) Silicone Expoxy Degassing and 4CFM Vacuum 1/3HP Pump Motor Power: 1/3HP, 4 CFM, Pump Speed: 1720 RPM, Oil Capacity: 200ml Heavy duty 3/4" shatter resistant acrylic crystal lid allows you to see inside and bulletproof Glycerin filled industrial gauge resists vibrations and keeps the gauge accurate to within 0.5inHg. Direct Drive Motor Allowing Easy Starting and is Maintenance Free, Oil Sight Glass for Monitoring Oil Levels Internal High Volume Cooling Fan for Extended Use, Exhaust Port with Exhaust Cap