KIMBLE® Glass Pennyhead Stopper, Size 16, Each

Stoppers are used with laboratory glassware such as flasks, mixing cylinders and separatory funnels.

• All stoppers are solid except sizes 32 and 38, which are hollow
• Made in accordance with ASTM Standard E694
• Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements