KIMBLE Full Length Hex Head Hollow Glass Stopper, 24/40

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

Hollow, hexagonal head, Standard Taper stopper

May be set on the flattened top to avoid contamination of the ground surface

Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements