Model A100 A-Seam Stretch-Fit Thermofin® Air Duct is a semi-rigid flexible aluminum pipe UL® 181 Class 0 used as supply, return or exhaust. It solves the need for an easily bent duct which makes small radius elbows. Our factory crimp ensures smooth connections. This patent pending design allows for tighter compression without making it harder to pull it back out for installation.
Builders Best® Stretch-Fit™, Thermofin® Air Duct, Round Vent Duct, 8 ft Length, 8 in Diameter, 12 in-WG, 35 ga Gauge, Aluminum, 5000 fpm Velocity Rating, Factory Crimp One End Connection, -100 to 430 deg F, Additional Information: A100 A-Seam Model, 4 in Bend Radius, Bulk Pack
- Length 8 ft
Specification Sheet- 8' lengths ships compressed to 23"
- 35 gauge aluminum (Brown and Sharp)
- T-Fin® design allows for better stretching and bending characteristics which helps eliminate flattening on the outside radius of a bend, thus preventing restricted airflow
- Factory crimp on one end
- UL® 181 label
- Built by Builder's Best in the USA