Steel Flexible Ventilation Duct Connector
A steel flexible ventilation duct connector is a round flexible steel tube with helical corrugations, used for connecting HVAC ductwork to allow movement and vibration isolation. It falls under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the duct connector is made of a base metal other than iron or steel
Flexible tubing of other base metals is covered by this alternative.
If the connector is imported as a part of a ventilation fan or air handling unit
Parts of air or gas pumps and fans are classified under Chapter 84.
If the connector is cut to a specific length and fitted with unique end connections
Other articles of iron or steel may apply if the product is more than flexible tubing.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the connector is not considered a part of an HVAC system (which would fall under Chapter 84)
• Declare the helical corrugations and any fittings
• Keep supplier documentation on the steel composition and diameter for CBSA verification
Related Products under Tariff item 8307.10.00
Braided Stainless Steel Ice Maker Line
A braided stainless steel ice maker line is a flexible tubing product with a 1/4-inch compression fitting on each end, designed to connect a refrigerator's ice maker to a water supply. It falls under tariff item 8307.10.00 because it is flexible tubing of iron or steel, with or without fittings, and is not excluded by any chapter or section note.
Corrugated Steel Flexible Chimney Liner
A corrugated steel flexible chimney liner is a flexible alloy steel tube installed inside masonry chimneys to vent wood or pellet stoves. It is classified under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes (e.g., not a part of Section XVI or XVII).
Flexible Stainless Steel Braided Dishwasher Supply Line
A flexible stainless steel braided dishwasher supply line is a reinforced flexible tube with elbow fittings, used to connect a dishwasher to a water supply. It is classified under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes.
Flexible Steel Braided LP Gas Line
A flexible steel braided LP gas line is a stainless steel corrugated core with a braided jacket, used for propane grill and heater connections. It falls under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes.
Galvanized Steel Braided Water Supply Line
A galvanized steel braided water supply line is a flexible connector with external braided reinforcement, used for plumbing connections between faucets and shut-off valves. It is classified under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes.
Galvanized Steel Flexible Exhaust Tubing
Galvanized steel flexible exhaust tubing is a corrugated tube used in automotive and HVAC exhaust systems for vibration absorption. It is classified under tariff item 8307.10.00 as flexible tubing of iron or steel, with or without fittings, and is not excluded by the section notes (e.g., not a part of Section XVII).