Borosilicate Glass Equilibrium Tube Apparatus, 4-Shape

The Eisco Labs Equilibrium Tube Apparatus demonstrates that liquids maintain the same level regardless of container shape. The borosilicate glass apparatus features four different tube shapes — a large straight tube, a squiggly tube, a tube with two bulbs, and a narrow straight tube — all connected at the base. It stands 10" tall on a sturdy, detachable base. This classic physics demonstration illustrates Pascal’s principle and the behavior of communicating vessels. Suitable for physics classrooms studying fluid statics, pressure, and equilibrium.