Stands out for its great tightness in all windows and doors types.
Its front opening can be both interior and exterior. It contains a hermetic seal between frame and sash, with double hermetic barrier at the frame-sash joint (double perimeter seal system).

Suitable window to generate controlled ventilation. It consists of a projecting sash with adjustable extension and retention arm. It is a window which is distinguished by its high tightness, unalterable to light and humidity. Also, facilitates curtains and blinds location, among others, as the sash opening is external.

A window with two opening possibilities, if the handle is turned by 90° a lateral opening is achieved, but if is turned by 180° an opening of the upper part of the window is achieved. Both options are interior openings which allows cleaning of window's exterior face from inside the room, A particularly useful feature in high-rise buildings. This system allows the window to be kept open permanently with different levels of ventilation.