Fire Extinguisher Pressurized Nitrogen Charge from Mexico
Pre-charged cylinders of pure N2 gas for propelling dry chemical agents in extinguishers. Wholly inorganic elemental gas preparation under HTS 3813.00.10.00.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• DOT cylinder certification and pressure test records required
• Purity >99.5% N2; air mixtures reclassify as compressed air
• Valve compatibility specs prevent field failures