automatische raamopener dubbele veer Humuforte is ‘Gewone’ tuinkers niet alleen

is ‘Gewone’ tuinkers niet alleen een smaakmaker

and for overwintering tub plants in a sheltered

wat extra duurzaamheid en stevigheid oplevert

Two side windows provide ventilation

herbs and vegetables (open base

automatische raamopener dubbele veer Humuforte is ‘Gewone’ tuinkers niet alleenThe 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