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Vortex Valve

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This is good clean scientific fun. The vortex valve is a designed to demonstrate how a tornado swirls. Use it to connect two large soft drink bottles. When one is half filled with water, flick your wrist and a tornado in a bottle is created. Bottle not included.  The video below shows it in action – video credit to FoxPail.

Age Recommendation: 5 Years +
Dimensions: 3.5cm x 3.5cm x 5cm 
Country of Design: Australia
Country of Manufacture: China
Primary Material: Plastic
Assembly Required: No
Gift Wrap Available: Yes
Brand SKU: 5003
Shipping Type: Standard