RERO Greenhouse Double Spring Automatic Window Opener Solar Heat Sensitive Garden Vent Agricultural Tools

Important Notice

1. Automatic ventilation of greenhouse can not be used at temperatures above 50° (122 F)
2. Make sure that your greenhouse window opens normally

Specifications

- Maximum height of the window opening about 45cm
- The temperature of complete opening about 30° (depending on adjustment and load)
- Maximum weight vents not more than 7kg/15lb
- Opening temperature regulated 16° to 25°

Note

When you receive this item in summer, you need to put the black bar into the refrigerator not less than 5 minutes to make the cylinder retracted fully before you assembly this product.