It is the ideal solution for enclosing large spaces, as the opening of the sash is made on a track that runs parallel to the fixed sash, so it does not take up space inside the room.

Semi-automatic swinging PSK – can also be opened on vent.

PAS damper swingarm – has perimeter ventilation and an RC2 safety rating, the closed position is easier thanks to the damper which helps to make it more comfortable to use.

Both are an optimal solution for thermal insulation and comfort.