Best Value Vacs-Glass Vac 3 Gallon Stainless Steel Wide Vacuum Chamber (Includes Domestic Components, Assembled in USA)

After a few months of use it still seals perfect and creates a good vacuum.

Used it right out of the box to degass silicone Alumilite, high strength 3. worked perfect, easy to control and monitor. The glass top is the only way to go. Highly recommend.