Automatic Window Control Mechanism – no power needed -

October 18th, 2010

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Gas-filled. Entirely self-contained (no power needed), the device extends inthe heat of the sun and opens up the cold frame. As soon as it becomescooler, the device closes it up again.

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Window Box 2 window boxes + 1 FREE + Eezee DVD
Window Box 1 window box
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Posted in Garden Tools | Tags: PERGART