Mounted for easy observation. For demonstrating the relationship between capillary pressure and the bore diameter of the capillary tube. The apparatus comprises of a metal frame, the base of which takes the form of a trough 115 x 40 x 10mm. The trough is filled with water and the difference in heights of the resulting columns of water in the tubes is readily apparent.
Frame 90mm (H), Capillary tubes 150mm (L)