Lambro 4 in. x 8 ft. Flexible Aluminum Duct

The Lambro 4 in. x 8 ft. Flexible Aluminum Duct is engineered for reliable general-purpose venting applications, including bathroom exhaust fans and kitchen range hoods. Constructed from Class 0 aluminum, this ducting is corrosion-resistant, non-combustible, and fire-resistant, providing dependable airflow management for residential and light commercial venting needs. Featuring continuous corrugations, this semi-rigid duct prevents collapsing while bending smoothly to navigate tight spaces. It maintains structural integrity under normal operating conditions and is designed to meet standard building code requirements for non-combustible exhaust venting.