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Borosilicate Glass Inner for Thermos Vacuum Flask

A glass inner liner made from borosilicate glass designed specifically for use inside thermos vacuum flasks to hold hot or cold liquids. It fits precisely within the outer stainless steel shell, creating the vacuum insulation layer. This product is explicitly listed under tariff item 7020.00.10 as a glass inner for vacuum flasks.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7020.00.90Higher: 6.5% vs Free

If the glass inner is not for a vacuum flask or vessel

The 'Other' item covers glass articles not specifically described in this 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 product is specifically a glass inner for a vacuum flask or vessel, as this is explicitly covered by the tariff item

• Provide clear product descriptions and dimensions to CBSA

• Consider whether the inner is sold separately or as part of a complete flask, which may affect classification

Related Products under Tariff item 7020.00.10

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A thin-walled borosilicate glass inner tube for stainless steel camping vacuum mugs, enabling 24-hour hot/cold retention via vacuum insulation. It features leak-proof lid threading for secure closure. This product is a glass inner for a vacuum vessel, qualifying under this tariff item.

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A high-purity borosilicate glass inner container for cryogenic vacuum Dewar flasks used in scientific labs to store liquefied gases. The inner wall forms the vacuum space with the outer wall for superior insulation. This product is a glass inner for a vacuum vessel, fitting this tariff item.

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A fused quartz glass inner cylinder for high-temperature industrial vacuum reaction vessels used in chemical processing. It provides chemical resistance and vacuum integrity under extreme conditions. Made of fused quartz, it has a low thermal expansion coefficient, qualifying it under this tariff item as a glass inner for vacuum vessels.

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