Natural Rubber Test Tube Stoppers from Canada
Cylindrical stoppers of vulcanized natural rubber for sealing laboratory test tubes. HTS 4016.99.35 covers as other natural rubber articles, excluding Chapter 90 labware. Lab sealing function fits residual category.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Confirm not Chapter 90 optical/measuring lab articles
• Sterilization compatibility documentation
• Size range specs for customs