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Greenhouse Solar-Powered Vent Opener keeps plants healthy and saves energy

Allows solar-powered control of either top or side mounted window vents.
Adjustable opening temperature of 60 deg F to 75 deg F, and an 18 in maximum opening.
Soundless wax motor reacts to solar sensors, opening vent just enough, allowing for a quieter, relaxing environment.
Works independent of power grid to continuously monitor greenhouse temperature.
Recommended for use in temperatures up to 120 deg F.
Lifting capacity - 15 lbs.
It is recommended the vent cylinder be removed during the winter months.

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