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Glass tubing are pieces of hollow tubes used in chemistry experiments. Tubing is often inserted into rubber stoppers with one or two holes for ventilation or vapor passage. Inserting tubing into rubber stoppers can be difficult due to the tight nature of the rubber stopper, please proceed cautiously when inserting tubing into stoppers. Find glass tubing below along with glass cutters to cut tubing to size.
The 5 mm glass tubing fits the holes in all of our rubber stoppers.