Manifolds feature 35/20 ball joints and 4 mm double oblique high vacuum hollow glass stopcocks.

• Heavy wall borosilicate construction
• 4 or 5 port options available
• Spherical joint side connections
• Hollow glass stopcocks (held in by Vacuum)

The stopcocks are precision ground with corresponding numbers on barrel and plugs. Lower vacuum chambers on stopcocks are evacuated with a separate hole in the plug in order to secure the plug in the barrel.