flexible air duct / polyester / aluminum / for ventilation
Min.: 80 mm (3 in)
Max.: 800 mm (31 in)
Insulated flexible ducts are produced on the base of Aluduct ducts which are shielded with 25 or 50 mm thick mineral wool. Externat coat is made of aluminium-polyester foil.
In the case of additional perforation of internal coat the duct has additional acoustic insulation.