Code: XDE408-15
If you throw the valve to the trash and replace with a good one, and lubricate the o-ring to seal tiny scratches, then this unit can hold 50mTorr for hours.
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Desiccators, Kartell, vacuum. Tough transparent polycarbonate top with O-ring seal, polycarbonate vacuum connection valve and polyethylene plug which allows controlled admission of air. The base is polypropylene and has a removable pan to hold desiccant.
