For covering the openings of the air duct networks leading in the free space. Suitable for both supply and return openings. Blades is made of galvanized steel lead the precipitations falling on them and wire net is placed behind the blades.

General producting sizes
Width 200 mm - 1500 mm
Height 200 mm - 1500 mm

It has got more parts 1500mm above. This can be specific size, specific RAL colours, or a special technical parameters.