4 inch aluminum flexibl air duct is made by two layers of aluminum foil with steel keel spiraling between inner and outer layer. If there is a layer of glass wool cladding outside, the air duct can be defined as Aluminum Foil Insulated & Flexible Air Duct.

Features:

1. Light, durability.
2. Flexible product, convenient to transportation, installation, and usage.
3. Good damping effect
4. Corrosion, mildew resistance
5. Flame and fire retardant
6. Good air tightness
7. Good noise reduction effect

Application:

It is mainly applied to air conditioning and ventilation system, especially as air duct to VAV(Variable Air Volume) terminal.

Advantage:

1. Advanced mold equipment, professional design and assembly line operation make sure high quality and efficiency save materials and reduce the investment on projects.
2. Complete accessories production and distribution make it easier to install.
3. Duct’s size and appearance can be customized according to customer request.
4. OEM is available.

Specification: