Kimax® Medium Length Standard Taper Glass Stopper
Kimax® pennyhead stoppers are used with laboratory glassware such as flasks, mixing cylinders, and separatory funnels.
- Standard Taper size 13 stopper is solid, stopper size 38 is hollow
- Designed from ASTM Specification E675
- Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements