Description
Kontes Full Length Standard Taper Pennyhead Glass Stopper. Stoppers are used with laboratory glassware such as flasks and separatory funnels.
Sizes Standard Taper 10/30 through Standard Taper 19/38 are solid
Sizes Standard Taper 24/40 and larger are hollow
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Image(s) are representative of the product group and not necessarily the individual product.