Experience outstanding thermal performance with our patented technology.
By integrating the stainless steel running track directly into the insulating bar, we've achieved a symmetrical isothermal curve, ensuring improved thermal insulation across our newly developed minimal windows® NGS system.
![Keller minimal windows-different versions-NGS](https://www.minimal-windows.com/files/News/2024-News/NGS-Flush-system-2.png)