Vacuum pressure indicator for vacuum desiccators
This vacuum pressure indicator fits between the desiccator dome and the desiccator stopcock. It slips easily onto the tapered outlet of the desiccator dome and into the standard desiccator stopcock without requiring any tools. The thermo-plastic elastometer collapses when there is negative pressure vacuum in the desiccator and expands under ambient atmospheric pressure.
|Vacuum pressure indicator for vacuum desiccators