SUPVOX Automatic Greenhouse Window Opener, 32cm Steel Rod, 7 Kg

Features- Size: 30.50X1.50X1.50cm/11.99X0.59X0.59in-Color:Black-Material:Stainless steel-Product Info:Automatic window opening pole-Light weight and portable, easy to carry and storage automatic greenhouse window opener kit.-Durable and rust-proof in humid environments, with auto greenhouse vent opener.-Easy to install, convenient and practical green house accessory.-Automatically to maintain the optimal growth temperature and prevent from overheating Auto Vent Opener.-The automatic vent opener is suitable for most current garden greenhouses automatic vent opener for greenhouse.Goods DescriptionGreenhouse Window Open Tool Working principle of greenhouse vent automatic opener: If the temperature of rises, the gas in the gas field will become hot, and the spring force will push it out due to the increase in pressure.auto greenhouse vent opener (window opens).Auto Vent Opener If the temperature Lower again (the cylinder cools down), the spring pushes the air rod back into the cylinder (the window )Package List1 x Automatic Window Opener

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