Flexible duct made of aluminium/polyester foil supported by a harmonic steel wire inserted between the two layers of hot welded aluminium/polyester. Working temperature: -20°C/+140°C (-4F/284F).

Color: aluminium. Fire reaction: class 1-0 (test certificate 2013). Max pressure: 3000 Pa.

Minimum bending radius: 0.6 times the diameter.