Grooved Iron Mechanical Coupling 8-inch

Heavy-duty cast iron mechanical coupling for 8-inch grooved pipes in large water mains. Classified HTS 7307.19.90.40 as grooved-end fittings including couplings. Designed for high-pressure, rigid joints.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.2%+35.0%41.2%
🇲🇽Mexico6.2%+10.0%16.2%
🇨🇦Canada6.2%+10.0%16.2%
🇩🇪Germany6.2%+10.0%16.2%
🇯🇵Japan6.2%+10.0%16.2%

Alternative Classifications

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

7307.99.10.00Lower: 38.7% vs 41.2%

If cast iron but socket-weld

Socket-weld couplings have specific cast iron provisions.

8414.90Lower: 10% vs 41.2%

If imported with compressor as set

Sets with machinery classify under the principal article, compressors here.

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

Test to AWWA C606 standards; specify bolt hole patterns; watch for reclassification if includes integral gasket as composite article

Related Products under HTS 7307.19.90.40

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Grooved Steel Pipe Coupling 2-inch

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Grooved Ductile Iron Elbow 4-inch 90-degree

A 90-degree elbow fitting made of ductile iron with grooved ends for 4-inch piping, commonly used in HVAC and water supply systems. Classified under HTS 7307.19.90.40 for other cast iron/steel grooved-end fittings excluding socket-weld types. The grooves enable roll-grooving installation for leak-proof joints.

Grooved Steel Tee Fitting 3-inch

Cast steel tee connector with grooved ends for 3-inch pipes, used in branching fire mains or industrial piping. It qualifies under HTS 7307.19.90.40 as other grooved-end cast fittings of iron or steel. Provides flexibility in system design with mechanical groove engagement.

Grooved Iron Reducer Coupling 6x4-inch

A cast iron reducer coupling transitioning from 6-inch to 4-inch grooved pipes, essential for diameter changes in water distribution. Falls under HTS 7307.19.90.40 for other grooved-end cast fittings. Facilitates efficient flow transitions without custom fabrication.

Grooved Steel Cross Fitting 2.5-inch

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