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Hot deal
Discover Science Vortex Valve
$3.95
Don't Pay $12.95 ⓘ
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$9.00
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Description and specs
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 two '0-ring' seals to protect against leakage.
Scientific fun. Now supplied with two '0-ring' seals to protect against leakage.
Delivery and returns
24 – 48 Hours Dispatch – $9.95 Shipping Nationwide.
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