Grey Iron Pipe Union 4 Inch from Canada
Large 4-inch grey cast iron union for municipal water mains and drainage systems. Classified in HTS 7307.19.90.30 for other cast unions, providing robust, corrosion-resistant joints. Features mechanical joint ends for easy field assembly.
Duty Rate — Canada → United States
56.2%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Heavy fittings require proper packing declarations to avoid damage claims
• Distinguish from flanged fittings by noting union nut design in photos/descriptions
• Comply with Buy America for US projects by documenting foreign origin separately