CS 68-HV

CS 68-HV

Concept System 68 'Hidden Vent' aluminium window

Universal solution

Concept System® 68 is a universal aluminium window, with good stability, thermal insulation and security performance. The window is available in a variety of aesthetic styles: Functional, Renaissance, Softline and Hidden Vent, meaning the windows can perfectly match any building.

The aluminium window can be inward and outward opening and is compatible with Ventalis ventilation units. In addition, the CS 68 window can comply with burglar resistance classes 2 and 3, offering an ultimate level of security.

Secured by Design option available 


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Technical information


Min. Visible width frame: inward opening76 mm 
Min. Visible width vent: inward opening0 mm 
Min. Visible width frame-vent: inward opening76 mm 
Min. Visible width frame: outward opening- mm 
Min. Visible width vent: outward opening- mm 
Min. Visible width frame-vent: outward opening- mm 
Min. Visible width T-profile101 mm 
Max. height vent2400 mm 
Max. width vent1400 mm 
Max. weight element120 kg 
Overall system depth frame59 mm 
Overall system depth vent63,5 mm 
Rebate height18,5 mm 
Min. Glass thickness12 mm 
Max. Glass thickness40 mm 
Min. Glass thickness vent12 mm 
Max. Glass thickness vent40 mm 


Air tightness max. test pressure4 (600 Pa)
Water tightness9A (600 Pa)
Wind load resistanceC4 (1600 Pa)
Acoustic performance44(-1;-5) dB
Thermal insulation (Uf)2.6 W/m²K

Opening elements

  • FixedFixed
  • Inward opening combined elementsInward opening combined elements
  • Inward opening tiltInward opening tilt
  • Inward opening turnInward opening turn
  • Inward opening turn tiltInward opening turn tilt