Window Opener Greenhouses Roof Lifts Autovent Kit Greenhouse Acessories Automatic Ventilation Openers for Greenhouse Hotel Garden Farm

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Can be clamped onto or screwed onto your greenhouse frame.
Prevent greenhouse overheating.
Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Ideal for your greenhouse window–opens and closes your greenhouse window.
As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.

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