automatische raamopener dubbele veer Man 2 sharpening options

2 sharpening options

Dankzij deze combinatie van royaal formaat

certified by Control Union Certifications

protection against slugs

automatische raamopener dubbele veer Man 2 sharpening optionsThe automatic roof window opener with double spring regulates the ventilation of your greenhouse window fully automatically, without you having to keep checking it yourself. The system works with a cylinder filled with special wax that reacts to temperature: when it gets warmer in the greenhouse, the window opens; when it cools down, the window closes again. This keeps the climate in your greenhouse better balanced, even when you are not there. It is