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Automatic Vent Opener Automatic Greenhouse Window Opener Cylindrical Roof Vent Opener Auto Vent Kit Greenhouse Automatic Window Opener Automatic Vents Double Spring Solar Vents

<ul><li>This is a replacement cylinder for automatic window opener</li><li>High sensitive, automatic respond to weather changes, so you don't need to stay near the greenhouse</li><li>Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops</li><li>Great for most greenhouse to open or close window automatically</li><li>Time and labor saving, also can supply a better temperature condition of plant's growth</li></ul>

Specification: Features: This is a replacement cylinder for automatic window opener. High sensitive, automatic respond to weather changes, so you don't need to stay near the greenhouse. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Great for most greenhouse to open or close window automatically. Time and labor saving, also can supply a better temperature condition of plant's growth. Specifications: Condition: Material: ABS Color: Black Temperature Range: 20-25 degrees Celsius / 68-77℉ Size: Approx. 33 x 1.5cm / 12.99 x 0.59in Weight: Approx. 117gMaximum Opening Distance: Approx. 45 cm / 18inAdjustable Length: Approx. 33-45cm/ 13-18in Application: For Under 14 Kg Window Package Included: 1 x Window Opener Cylinder Only Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. No battery or electricity required, need to be refrigerated before use.

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