Keller minimal windows® KELLER minimal windows®4+ highline Aluminium sliding window

The minimal windows®4+ highline concept features striking sleek elegance and unique façade configurations.‎ Clear, precise lines dominate while the glass surfaces are open and inviting.‎ Architectural forms create a strong look and offer an unimpeded view.‎ The open architecture allows occupants to focus on the space.‎ This floor-to-ceiling premium glass façade comprises highly-insulating triple glazing.‎ The flush- or offset surfaces of the glass façade correspond to energy-efficiency requireme