Natural Rubber Expansion Joints for Piping from Mexico
Flexible connectors made of vulcanized natural rubber to absorb thermal expansion in plumbing or industrial pipes. Classified under HTS 4016.99.35 as other natural rubber articles, not basic tubes due to bellows shaping. Excludes hard rubber and pipe fittings of other chapters.
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
• Certify pressure ratings and rubber composition for customs review
• Distinguish from plastic (Chapter 39) via material tests
• Declare as rubber, not Chapter 73 metal pipe fittings if rubber dominant