Heavy-Duty Tapered Natural Cork Lab Flask Stopper from Canada
Durable tapered stopper from natural cork for laboratory glassware like Erlenmeyer flasks, with length > diameter for lab sealing. Under HTS 4503.10.40.00 as other tapered natural cork stoppers. Used in chemical and biological experiments.
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
• Include end-use declaration as labware to avoid consumer goods treatment
• Test for chemical resistance in docs, as impurities shift classification
• Bulk lab imports need precise counting for duty calculation