Steel Flexible Ventilation Duct Connector from Germany
Round flexible steel tubing with helical corrugations for connecting HVAC ductwork, allowing movement and vibration isolation. Under HTS 8307.10.60.00 as other flexible steel tubing for air handling systems. Diameters typically 4-12 inches.
Duty Rate — Germany → United States
13.8%
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
Import Tips
• Include airflow velocity ratings and fire resistance test results per UL standards
• Specify gauge thickness (e.g
• 28-30 ga.) for proper statistical reporting
• Bundle with clamps if sold as sets to maintain flexible tubing classification