Borosilicate Glass Demonstration Tube, 23.5 x 0.79 inch

This borosilicate glass demonstration tube measures 23.5 inches long with a 0.79-inch outer diameter and 0.57-inch inner diameter. Open on both ends. The sturdy borosilicate glass is autoclavable with heat tolerances including a Strain Point of 515°C, Annealing Point of 565°C, and Softening Point of 820°C. Suitable for physics and chemistry classroom demonstrations including gas behavior, falling object experiments, and other long-tube applications.