Corrugated Steel Flexible Chimney Liner from China

Alloy steel flexible liner tubing installed within masonry chimneys for venting wood/pellet stoves. Falls under HTS 8307.10.60.00 as other flexible steel tubing for high-temperature applications. UL-1777 listed for safety.

Duty Rate — China → United States

38.8%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Provide UL listing and temperature ratings (up to 1800°F) documentation

Declare stainless steel alloy composition for proper duty assessment

Coil diameters must match chimney sizes (6-8 inches typical)