The Side Louver Window is designed to improve the air circulation and help control the temperature in all Palram - Canopia greenhouses. The shutters are controlled manually for variable airflow to help aid in cooling on warmer days. When paired with the roof vent, the louver window can provide improved air circulation. The Side Louver Window can be fitted with Palram - Canopia's Automatic Louver Opener to provide the ideal airflow into the greenhouse.