The greenhouse window opener is a ideal for your greenhouse window--opens and closes your greenhouse window.
As the temperature changes automatically, this greenhouse window opener kit can maintain the best growing temperature and prevents your greenhouse from overheating.
Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Professional design,the greenhouse vent opener can be clamped onto or screwed onto your greenhouse frame.
Please ensure your greenhouse window can be opened freely by at least 45cm (18").
