Chemglass, CG-468-02, Stopcock, Double Oblique, Glass Plug, High Vacuum, 4mm Bore, 16.2/56 Plug Size, 10mm OD Sidearms
Solid glass high vacuum stopcock with the Chemglass constant pressure retention device. This unique retaining system incorporates a glass plug having an extended snelling which accepts a stainless steel spring and clip. The spring keeps constant tension on the plug at all times and is easily removed and attached. Each stopcock is supplied complete with a stainless steel spring and clip.