Versatile lab glass hollow plugs available in sizes 14#, 19#, 24#, and 29# for various flask applications.
Designed for use in school experiments, these standard mouth stoppers ensure secure sealing
Durable glass material provides reliable performance and longevity, making it ideal for repeated laboratory use.
Available in multiple quantities (1pc, 2pcs, 10pcs) to suit different project needs and budgets.
Great for labs, educational environments and DIY science projects to enhance your lab setup.
1pc/2pcs/10pcs Lab Glass Hollow Plug 14# 19# 24# 29# Standard Mouth Stopper Grinding Air Plugs for Flask School Experiment
Item: hollow plug
Material: borosilicate glass
Origin : Mainland China