automatische raamopener dubbele veer Oktober (Glas) Both have a sliding door

Both have a sliding door and a slightly sloping roof

5 cm x 60 metres

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automatische raamopener dubbele veer Oktober (Glas) Both have a sliding doorThe 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