✔Quality Construction--Reliable, quality built anodised aluminium automatic window opener for greenhouses.
✔Automatically-As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
✔Environmental friendly-Non Electric and uses solar energy, open or close the greenhouse vents as temperature rises or drops Including fittings & installation manual.
✔Convenient - Can be clamped onto or screwed onto your greenhouse frame.No drilling needed.
✔Haofy Guarantee--we provide a 30 days full- refund if there is any problem with the product.
