Storm-proof and no maintenance due to electric motors driving a rack and pinion System.
Guaranteed long lifetime of all components, because the ventilation system in the outside walls moves up or down as a whole in a frame.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.