Precision ground with corresponding numbers on the barrel and plug Lower vacuum chamber is evacuated via a separate 2mm hole in the plug which is not in the line of flow.
| Stopcock Bore (mm) | 2, 4 |
|---|---|
| Plug Size | 12.6/40, 17.35/50 |
| Stem O.D. (mm) | 8, 10 |
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Price range: 41,00 € through 45,60 €