ARKSEN 5CFM Vacuum 1/2HP Pump and Vacuum Chamber 5 Gallon Silicone for Expoxy Degassing Kit Maximum Rated Vacuum: 29.9inHg @ sea level / 24.82 @ 5000ft Hydro-tested stainless steel container is high strength, very durable Pump Speed: 1720 RPM, Oil Capacity: 250ml, Micro Rating: 75 Microns (10pa) Internal High Volume Cooling Fan for Extended Use Includes a Bottle of Vacuum Oil "FREE"