Products & ReviewGeneral Lab
PYREX® No. 9 Solid Glass Pennyhead Standard Taper Stoppers
(This is the suggested replacement for 7660-9)Pennyhead stoppers are generally used in flasks and separatory funnels."
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(This is the suggested replacement for 7660-9)
Pennyhead stoppers are generally used in flasks and separatory funnels."
