?Suitable for Most Greenhouses? This corkscrew will automatically open and close your greenhouse windows to maintain the optimal growing temperature and prevent the greenhouse from overheating.
?High-Quality Structure? Reliable, high-quality anodized anodized aluminum automatic window opener.
?Working Conditions? Start opening 20°C-25°C (68-77°F); full opening distance 45 cm (18 inches), maximum opening weight: 7kg / 15lb.
?Environmental Protection? Non Electric uses solar energy to open or close the greenhouse vents as the temperature rises or falls, including accessories and installation manuals.
?Convenience? Sensitive opener can be clamped or screwed on the greenhouse frame without drilling holes.