Exaco Evolution Louvre Auto Opener Agricultural Greenhouses Dimensions: 74

Dimensions: 74

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Exaco Evolution Louvre Auto Opener Agricultural Greenhouses Dimensions: 74Exaco Evolution Louvre Auto Opener The Alton Automatic Louver Opener automatically regulates greenhouse airflow by opening and closing most louver vents based on temperatures between 59F and 77F. Fully adjustable and easy to use, it helps maintain ideal growing conditions while reducing the need for manual ventilation adjustments. Some drilling is required for installation. Features Automatically regulates greenhouse ventilation Opens and closes