As not all windows are square, EHRET has a range of special shapes to offer. The variety of elaborations in the form of round arches and inclined surfaces fit into almost any window.
Horizontal and vertical cross-panels
Horizontal and vertical cross-panels can be integrated individually between centres as a design element. In larger models, they give the sash additional stability.
The window shutter with opener provides shade when it's sunny and lets fresh air into the apartment.