About this item

• Temperature Control: Window opener doesn't require electricity or collect solar energy. Greenhouse vent uses the principle of thermal expansion and contraction. The built in cylinder of the opener adjusts according to the change of temperature
• Window Opener Parameters: Size: about 33 x 1.5 cm / 12.99 x 0.59 inches, temperature range: 20-25℃ / 68-77℉, adjustable length: about 33-45 cm / 13-18 inches, suitable for windows under 14 kg
• Metal Material: Automatic window opener bottom is ABS material, and the telescopic part is made of aluminum alloy and stainless steel. Greenhouse vent has the characteristics of high hardness and not easy to deform, and can withstand windows below 14kg
• Easy to Use: Automatic greenhouse vent opener is easy to install and is the same as the previous matching parts. The cylinder needs to be refrigerated for half an hour before use. Please use the opener cylinder below 50℃
• Window Opener Only: Only greenhouse automatic vent opener is provided in the package to facilitate replacement of old greenhouse window opener automatic cylinder, window opener or installation instructions are not included