With porcelain plate. Vacuum-tight. The stopcock has an outer diameter of approx. 9 mm.

Vacuum desiccators
Desiccators vacuum
Desiccators glass
Vacuum desiccators
Desiccators vacuum
Desiccators glass
Vacuum desiccators
Desiccators vacuum
Desiccators glass
Vacuum desiccators
Desiccators vacuum
Desiccators glass
Vacuum desiccators
Desiccators vacuum
Desiccators glass