- curtain type: aluminum filled with polyurethane foam or PVC
- inspection flap from the outside
- aluminum guides
- box shape: rounded
- resistance to weather conditions
- min. box width: 500 mm
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The system is equipped with a semicircular box, which due to its shape is especially recommended for installation on already existing elements. Thanks to its characteristic casing and the use of an appropriate angle in the upper part of the box, it fits perfectly into the window recess.