Liberty Automatic Louver Window Opener – Lifts 55 Lbs

  • Irene Savchin: Titanium Director
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Amazon Price: $39.99 $39.99 (as of July 27, 2017 6:44 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Ingenious temperature-sensitive device automatically opens and closes louver windows to maintain a constant interior climate in your home or greenhouse. Requires no batteries or electricity, it starts opening between 63 -78°F, depending on how you have adjusted the vent.

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