Steel Flex-Duct Connector with Band Clamp Fittings

Galvanized steel flexible duct connector with adjustable band clamp fittings for HVAC round ductwork. Under HTS 8307.10.30.00 as flexible iron/steel tubing with fittings for air distribution. Vibration isolation reduces noise transmission.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.8%+35.0%38.8%
🇲🇽Mexico3.8%+10.0%13.8%
🇨🇦Canada3.8%+10.0%13.8%
🇩🇪Germany3.8%+10.0%13.8%
🇯🇵Japan3.8%+10.0%13.8%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7308.90Lower: 10% vs 38.8%

If rigid duct structures

Non-flexible duct components use Chapter 73.

8302.41.30.00Higher: 38.9% vs 38.8%

If with small wheels/casters

Mobile duct units with castors (under 75mm) shift to Chapter 83 hardware.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Include SMACNA gauge thickness certification for duct connectors

Document clamp band adjustment range and sealing pressure

Test airflow velocity capacity per duct standards

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