These wall-inlets have satisfied the need of our customers for decades. Durability is ensured as these inlets are made with recyclable, non-deformable, UV-stabilised, and shock-proof plastic material. Since one can open the inlet flap with a downward pull, the opening of the inlet in each season is precisely regulated.
The fresh air inlets are opened either all at once or individually by the corresponding control set. We have a patented advanced inlet control mechanism (except for inlets type B/F) that helps pre-define the order of individual inlet opening using a single action at each inlet.