Heavy-Duty Tapered Natural Cork Lab Flask Stopper
A durable tapered stopper made from natural cork, designed for laboratory glassware like Erlenmeyer flasks, with length exceeding diameter for lab sealing. This product is classified under tariff item 4503.10.00 as a cork or stopper of natural cork.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the stopper is made from agglomerated cork
Agglomerated cork articles are classified under a different tariff item.
If the stopper has a synthetic coating
Coated cork products may fall under a different tariff item.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the stopper is made of natural cork and not agglomerated
• The CBSA may require a certificate of analysis if the stopper is used in laboratory settings
• Clearly describe the product's use on the commercial invoice
Related Products under Tariff item 4503.10.00
Agglomerated Cork Champagne Cork
An agglomerated cork champagne cork, composed of natural cork granules and a binder, used for sparkling wine bottles under pressure. This product is classified under tariff item 4503.10.00 as a cork or stopper of natural cork, as it is not excluded by the chapter notes.
Agglomerated Cork Liqueur Bottle Stopper
A short, wide cork stopper made from natural cork granules and a binder, used for liqueur and cordial bottles. This product is classified under tariff item 4503.10.00 as a cork or stopper of natural cork, despite its agglomerated composition.
Agglomerated Cork Spirit Bottle Cork
A heavy-duty reconstituted natural cork stopper for liquor and spirits bottles, engineered for long-term sealing. This product is made from natural cork granules and a binder, and is classified under tariff item 4503.10.00 as a cork or stopper of natural cork.
Agglomerated Cork Tapered Bottle Stoppers 18mm
Agglomerated cork tapered stoppers with an 18mm maximum diameter, elongated for use in champagne or sparkling wine bottles. The taper and dimensions ensure a secure seal under pressure, and the agglomerated composition provides consistent performance. This product falls under tariff item 4503.10.00 as a cork stopper made of natural cork.
Cork Fermentation Airlock Stopper
A specialized cork base for homebrew airlocks in fermentation vessels, made from natural cork granules and a binder. This product is classified under tariff item 4503.10.00 as a cork or stopper of natural cork, as it is not excluded by the chapter notes.
Craft Beer Tapered Cork Stoppers 18.5mm
Tapered cork stoppers with an 18.5mm maximum diameter, designed for craft beer growlers and bombers. The length exceeds the diameter to accommodate cage-wire closures, ensuring a tight seal for carbonated beverages. These are agglomerated cork stoppers, classifiable under tariff item 4503.10.00.