Lambro 3110 Flexible Semi-Rigid Duct Kit, 3 in, 8 ft L, Aluminum

Semi-rigid aluminum duct is ideal for applications where building codes require use of all aluminum duct. The duct is totally non-combustible with a maximum operating temperature of 400 deg F.

• Continuous airtight lock seam duct
• Continuous airtight lock seam duct
• Non-combustible