Kimble® KIMAX® Solid Glass [ST] Pennyhead Stoppers

Pennhead glass stoppers are used with flasks, mixing cylinders, separatory funnels, etc. Length of ground zone given below is for the outer member into which the stopper fits. Ground zone of stoppers is slightly longer. All stoppers are solid except [ST] stopper size 13. Designed from ASTM Specification E675.