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Solar Heat-Greenhouse Window Opener Vent Autovent Solar Heat Sensitive Automatic Greenhouses Roof
Solar Heat-Greenhouse Window Opener Vent Autovent Solar Heat Sensitive Automatic Greenhouses Roof
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As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. Ideal for your greenhouse window--opens and closes your greenhouse window. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Prevent greenhouse overheating.