Description: combined flexible duct are made of laminated aluminum foil with strong helix steel wire, and covered with a mechanical resistant PVC layer (black, gray and white color)

Type: 1 layer / 2 layers

Thickness of inner duct:  0.17mm

Diameter: from 3” (75mm) to 30” (750mm)

Length: 10m

Temperature range: -30 ºC  -  +150 ºC

Max air velocity: 30m/s

Working pressure: 2500Pa

Fire Resistance: Class B1

Low / Medium / High pressure air ventilation and air condition system

Packing: individual carton