- box shape: rectangular
- PVC box (optional aluminum cover of the external faceplate)
- curtain type: aluminum filled with polyurethane foam or PVC
- inspection flap from the front or from the bottom
- PVC and aluminum guides
- maximum construction depth of the window frame for a inspection flap at the bottom: 98 mm
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The system is unique for the best parameters of thermal and acoustic insulation due to its unique structure and very high quality of the components used. It allows you to provide comfort to users both in summer and winter. Thanks to the grooved front plates, there is no need to use additional plaster carriers when mounted on the outside and inside.