• Outstanding heat insulation thanks to foam-filled profile chambers.

• Innovative STV^® bonding technology for a “borderless” sash design guarantees maximum stability.

•  Unique surface quality thanks to exclusive acrylcolor technology on the outside.

 Seamless sash design with no glazing beads and flush sightline thanks to optimal clip profile

Rectangular appearance all round – both inside and outside.
Sash invisible from the outside.