Brass Refrigeration Tubing 3/8 Inch from China
3/8-inch OD annealed brass tubing from copper-zinc alloy used in HVAC and refrigeration systems for refrigerant lines. Classified under HTS 7411.21.50.00 as 'other' brass tubes, with zinc as the predominant alloying element per chapter definitions.
Duty Rate — China → United States
38%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include NSF/ANSI 61 certification for potable water contact if applicable; test reports prove alloy meets brass criteria
• Declare inner/outer diameters precisely; coiled vs straight lengths don't affect classification but impact valuation