đăPremium MaterialăAutomatic window opener is made of aluminum alloy, maximum window opening: 45cm/17.7inch. Maximum opening about: 30°. Maximum opening weight: 7kg/15lb. Size: 38 x 9.5 x 9.5 cm / 14.96 x 3.74 x 3.74 inch (appr.)
đăDouble Spring DesignăCompared with the single spring vent, the double spring greenhouse window opener has stronger thrust force, more solid, and much durable.
đăSolar Heat SensitiveăNon electric, our window vent opener uses solar energy. The automatically adjusted temperature is 15 to 25°C. When the temperature exceeds 25 degrees, the window regulator will remain open. The temperature drops to 15-18 degrees Celsius and the opener will close completely.
đăHigh PerformanceăAs the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
đăIdeal for Your Greenhouse WindowăThe greenhouse window opener can be clamped onto or screwed onto your greenhouse frame, opens and closes your greenhouse window.
