Unsymmetrical reduction is used to change the diameter of the ventilation duct.

Rectangular fittings made of galvanized steel. Specially designed for the construction of a warm air distribution system from a fireplace in screeds. Rectangular fittings allow the most complex installations to be made through a wide range of fittings and size. The elements are connected with each other by means of connectors overlapping the elements.

dimensions

• size 150/50 mm
• size 200/50 mm
• size 200/90 mm