Solar Louver Opener

Solar Louver Opener

 
SKU: GHLVR
$94.95

Automatically opens and closes the upper louver vent in response to temperature changes.  No batteries or electricity required.  The piston is coated with a mineral wax that expands with a temperature increase.  As the wax cools, the piston lowers and gradually closes your vent. Installs right on the Louver vent.

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