The array of fittings and circular channels are designed for building ventilation systems or distributing warm air from fireplaces. Most are installed above suspended ceilings.
Offered ventilation elements circular, are manufactured in diameters from 80 - 630 mm, made of galvanized sheet with a thickness of 0.5 mm. All components are made using a spot welding technology. You can connect with each round and rectangular systems with transition fittings.

The individual elements are joined together by a double muff. Selection of different diameters is designed to be able to combine elements of the flexible wires, galvanized aluminum. In order to secure such connections before hanging it in addition the steel band or tape monterską.