About This

• Easy Setup with Video: Step by step video guide, easy calibration, includes 2 long screws for metal frames
• Dual Spring 15 lbs Thrust: Powerful dual spring design, effortlessly opens and closes heavy vents windows
• High Strength Aluminum Alloy: Made of strong aluminum alloy, superior durability for stable, long term use
• Solar Powered Automatic: No electricity needed, heat activated, prevents overheating freezing automatically
• Universal Fit for Greenhouses: Fits most greenhouse types, auto regulates temperature, your smart gardening helper