Flexible duct made of two layers of PVC, 120 micron thick, reinforced and supported by a spiral of harmonic steel wire inserted between the two layers of hot welded PVC. Working temperature: -20°C/+140°C (-4F/284F).

Color: aluminium. Reaction to fire: class 1. Max pressure: 2500 Pa. Max air speed: 32 m/s.

Minimum bending radius: 0.6 times the diameter.