Thermal Relief Valve for Hot Water Heaters from Mexico
Valve that relieves pressure buildup from thermal expansion in hot water storage tanks, preventing tank rupture. Classified in HTS 8481.40.00.00 as a safety relief valve for water heating systems and pressure vessels.
Duty Rate — Mexico → United States
12%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Require ANSI Z21.22 certification for water heaters; provide temperature/pressure ratings; avoid classifying with water heaters under 8419 to prevent higher duties