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Grainger Stopper Sz 3 18 mm BDia Black 0 PK40
Supplier: Grainger 16ZD42
The Grainger Approved Stopper is a rubber stopper designed to seal openings in laboratory glassware. It is made of black rubber and has a diameter of 7/16 inches. The stopper features a solid top to prevent spillage and a tapered design for easy insertion and removal. It creates an airtight seal and can withstand temperatures up to 250°F. The stopper is sold individually. It is an economical option for sealing flasks, test tubes, and other glass containers in chemistry labs.
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