The three-chamber system for the windows with „euro” standard hardware groove and groove used in windows and balcony doors made of PVC or wood profiles.

The depth of the frame is 68 mm and the depth of leaf is 76 mm.

Glass thickness of 18-59 mm can be applied into the system as well as the arched constructions.

Heat transfer coefficient (for frame) U_f=1,5 W/m²K (basic option).