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A valve with no moving parts.

It allows flow in one direction to flow freely. But in the opposite direction it is impeded by a factor of 200 times.

With no moving parts – nothing to wear out. You would think in would find numerous uses, but I can’t think of where it is being used around my home.

Let me know in the comments where you have seen this valve used.

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Watch the video to see how it works:

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