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4503.90.20.00/Natural Cork Pipe Flange Washers/Canada

Natural Cork Pipe Flange Washers from Canada

Large cork washers for sealing pipe flanges in low-pressure systems. Classified HTS 4503.90.20.00 as cork washers; compressible for easy installation. Common in agricultural plumbing.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Pressure rating certifications required

• Size declarations prevent Chapter 39 gasket confusion

• Bulk import avoids 7307 pipe fitting classification