Porro Prism Pair for Binocular Optics from Canada
Pair of mounted Porro prisms that provide upright image in binocular telescopes by folding the optical path. Classified under HTS 9002.90.20.00 as essential mounted optical elements for binocular instruments. The mounting aligns precisely within the binocular housing.
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
• Specify binocular model compatibility to prove instrument-specific use
• Phase retardation coatings must be documented for optical performance claims
• Import as sets when paired to avoid single prism scrutiny