A rectangular shaped tube for demonstration of convection in water. The apparatus can be clamped vertically on a retort stand. The tube is filled with water and some indicator is added to it. When the tube is heated at one of its lower corners, shows the convection. Clamp, retort stand and indicator are not supplied.
SP045 – 380 x 240x18mm (L x W x Tube dia.)
SW485 –  140 x 100 x 13mm (L x W x Tube dia.)