Symmetric transition

Transitional shapes of circular and rectangular duct elements. Standard with fixed frame connection, but also available with loose frame, concentric and eccentric mode. Made of 0,7 mm thick galvanised steel plate from 0 to 799 mm side length, 0,9 mm from 800 to 1499 mm side length and 1,0 mm from 1500 mm side length. Available in air tightness B and C, as well as heat and smoke versions.