4″ x 8′ Flexible Semi-Rigid Aluminum Duct with Connecting Ends – Item #3020

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°F.

• Connecting ends allow for multiple lengths to be connected
• Continuous airtight lock-seam
• Non-combustible
• Class 0

Product Contains:
(1) – 4″ x 8′ Flexible Semi-Rigid Aluminum Duct with Connecting Ends