Non Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Quality Construction. Reliable, quality built anodised aluminium automatic window opener for greenhouses.
Easy to install, Screws directly into polycarbonate panels, wood, or metal frames.
Suitable for Most Greenhouses. This opener will automatically open and shut your greenhouse window to maintain the best growing temperature and preventing your greenhouse from overheating.
Please ensure your greenhouse window can be opened freely by at least 45cm (18"). Do not apply excessive loads by locking or covering window.
