This 4 in. x 25 ft. flexible aluminum foil duct is ideal for bathroom fan exhausting and other general purpose exhaust applications. 3 layers of aluminum foil laminate are included in its composition that will withstand up to 250°F temperatures. This product has been rated as an air duct connector under UL 181 and should never be used for dryer venting purposes.
- Made from 3 ply aluminum foil laminate
- Maximum operating temperature of this product is 250°F
- Product should never be used for dryer venting applications
- Rated as a UL 181 class 1 flexible air duct connector