Ponzio PE68 is a three-chamber system for the windows with "euro" standard hardware groove. The depth of the frame is 68 mm and the depth of leaf is 76 mm. Due to the wider construction, in comparison to the Ponzio PE60, 32 mm fibreglass reinforced by polyamide strips and two-component central gasket guarantee high thermal parameters. There is no need for a drip, what positively influences the beauty of the curtain wall, thanks to the modernization of the sealing elements. The system allows to use the wide range of hardware and ease their installation. Three chamber-system Ponzio PE68 permits to set up constructions of large dimensions. Glass thickness of 18-59 mm can be applied into the system as well as the arched constructions.