Greenhouse Window Opening Kit, Automatic Ventilation Opener, Ventilation Window Opener, Roof Ventilation Opening Bar for Garden Greenhouse

1. The greenhouse window opening kit is made of aluminum alloy, offering good durability and stability. 2. When the temperature changes, it automatically opens and closes to prevent the greenhouse from overheating. 3. With springs and support rods, it provides extra protection against wind damage. 4. It can be directly clamped or screwed onto your greenhouse frame, making it easy to install and use. 5. Maintains the optimal growing temperature in the greenhouse and provides a suitable growing environment. Specification: Condition: 100% Brand New Item Type: Window Opening Kit Material: Aluminum Alloy Color: Black Uses: Greenhouse, Household Bearing Weight: 14kg / 31lb Opening Force: 7kg / 15lb Closing Force: 0.5kg / 1lb Product Operating Temperature: 17-25°C Maximum Opening Temperature: 30°C Maximum Opening Distance: Approx. 45 cm / 17.7 inches Weight: approx. 570g / 20.1oz Window opener size: approx. 31.5 cm / 12.4 inches Cylinder size: approx. 34 cm / 13.4 inches Package list: 1 x accessory kit (12 pieces) 1 x English manual 1 x window opener 1 x cylinder Note: 1. Please allow 0-1 inch error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated the same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.