Automatic Black Opener Stainless Steel Solar Heat Greenhouse Window

Package Include 1 x Automatic Window Opener Features - Size: 32.00X1.50X1.50cm/12.58X0.59X0.59in -Color:Black -Product Info:Automatic window opening pole -Material:Stainless steel -Light weight and portable, easy to carry and storage greenhouse supplies and accessories. -Automatically to maintain the optimal growth temperature and prevent from overheating accessories for greenhouses. -The automatic vent opener is suitable for most current garden greenhouses window lifter. -Easy to install, convenient and practical automatic opening closing louver. -Durable and rust-proof in humid environments, with Greenhouse Auto Vent Openers.Goods Descriptionroof ventilation (window opens).automatic greenhouse window opener kit If the temperature Lower again (the cylinder cools down), the spring pushes the air rod back into the cylinder (the window ).auto roof vent opener 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

• Automatic greenhouse vent--automatically to maintain the optimal growth temperature and prevent from overheating,agriculture greenhouse automatic vent opener
• Greenhouse solar automatic window opener--automatically open greenhouse windows as temperature changes,vent opener
• Auto vent opener solar--convenient to use, greatly save your time and efforts,greenhouse kits for outdoors
• Automatic greenhouse vent opener--time and labor saving, also can supply a better temperature condition of plant's growth,automatic vent opener for greenhouse
• Roof ventilation equipment--it can supply a good temperature condition for plant's growth,greenhouse window vent opener