Membrane Nitrogen Generator Module from Mexico
Hollow fiber membrane modules separate nitrogen from air by allowing oxygen and other gases to permeate through semi-permeable membranes under pressure. Classified under HTS 8421.39.0140 for its specialized gas separation function in industrial inert gas supply.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide membrane permeability specs and N2 purity test results to confirm gas separation capability
• Label as 'industrial gas separation' to distinguish from consumer air purifiers
• Check for pressure vessel certifications (ASME/DOT) for safe customs clearance