This British made louvrematic automatic louvre opener is a reliable, premium quality product. It will automatically open and close your Rhino greenhouse's 5 blade louvre vents, adjusting the temperature and controlling the heat inside your greenhouse. The opening angle can be adjusted as needed to allow you complete control over airflow. Our louvrematics are designed to begin opening between 12-18 degrees.

Please note: Can be retrofitted to any 5 blade Rhino louvre vent. This opener should only be purchased for use with Rhino 5 blade louvres & can't be used when two louvre vents are side by side.