Cuchiilo 4 Inch 25 Feet Insulated Flexible Duct R4.2,4 in Insulated Flexible Duct,4 Inch Insulated Flexible Duct,for Heating and Air Conditioning HVAC Systems String Lines Customer Service: Your satisfaction is

Customer Service: Your satisfaction is important to us

quiet performance

The cabinet is light

Truly worry-free after use

It offers Cloud/SD card(not included) and local storage options

Cuchiilo 4 Inch 25 Feet Insulated Flexible Duct R4.2,4 in Insulated Flexible Duct,4 Inch Insulated Flexible Duct,for Heating and Air Conditioning HVAC Systems String Lines Customer Service: Your satisfaction isBrand: Cuchiilo Color: R 4. 2 Insulation Features: High quality performance 4 in insulated flexible ductMade of thickened aluminum foil material and made of high strength elastic spiral steel wire. The middle is covered with glass fiber insulation layer, which has high temperature resistance, acid and alkali resistance, and flame retardancy. Owens Corning Glass Wool Insualtion Glass wool Insualtion is the safest building material, with high corrosion