4″ Aluminum flexible duct Pipe (Length 5 Meter/16 Feet)

Aluminum flexible duct pipe for fresh air system

1 layer of the aluminium laminated with the polyester with the coil made of the spring wire.
Total 2 layers:
Front layer: Aluminum foil
Back layer: Polyester
Spring wire: carbon steel
Diameter: 4″ (100mm)
Air Velocity: 30m/s (max)
Temperature Range: -30°C to +70°C
Operation Pressure: 2500 Pa (Max)
Fire Resistance: Yes
Standard Length: 5m
Price: 1050tk