Science and Nature 5003: Vortex Valve
In Stock
The vortex valve is a designed to demonstrate the how a tornado swirls. Connects two large soft drink bottles. When one is half filled with water, with a flick of the wrist a tornado in a bottle is created. Scientific fun.
Now supplied with 'O' ring seals to prevent leakage.
Supplied in display boxes of 24.
SKU5003