GL SYSTEM profile - five-chamber system with an external sealing, which depth amounts for 70 mm.
Warm profile GL SYSTEM Classic is a system designed by DRUTEX S.A. with an aim to fulfill the expectations of the end-customer. Combination of high thermal-insulation Uw = 0,89 W/(m2K) and acoustic level as well as the perfect functionality of the profile makes the system elegant and modern. 
GL SYSTEM makes it possible to produce the windows of different shapes, that guarantee proper and reliable working. GL SYSTEM enables it to offer our customers windows, which fulfill all functional requirements and at the same time which show the highest quality when it comes to aesthetic issues.