7303.00.00/Cast Iron Gas Vent Pipe 4-inch/Japan

Cast Iron Gas Vent Pipe 4-inch from Japan

4-inch cast iron pipe for venting natural gas appliances like boilers in commercial settings. HTS 7303.00.00 for this hollow cast iron profile resistant to high temperatures.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• NFPA 54 compliance docs; specify draft hood connections

• Insulate bundles for cold weather ports to prevent brittleness