7303.00.00/Cast Iron Soil Pipe 4-inch Diameter/Japan

Cast Iron Soil Pipe 4-inch Diameter from Japan

A 4-inch diameter cast iron pipe used in plumbing systems for drainage, waste, and vent applications. It falls under HTS 7303.00.00 as it is a hollow profile made entirely of cast iron, designed for conveying sewage and wastewater in residential and commercial buildings.

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

• Verify cast iron composition via material certificates to avoid reclassification as steel pipes under Chapter 73 headings like 7306

• Ensure compliance with ASTM A888 standards for soil pipes; provide test reports for wall thickness and coating to prevent delays