SITCSection 8
U.S. imports of vacuum flasks & vacuum vessels with cases, and non-glass parts (SITC 89997) totaled $111.4M in April 2026, traded with 29 countries.
Importers of Vacuum Flasks & Vacuum Vessels with Cases, and Non-Glass Parts paid $19.1M in duties in April 2026 — an effective duty rate of 17% on $111.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataComplete vacuum flasks and insulated vessels — imported with their protective cases and excluding glass inner liners, which are classified separately — serve the consumer housewares, foodservice, and industrial temperature-maintenance markets. The exclusion of glass inners from this heading is a common classification pitfall: replacement glass liners fall under a different subheading, and importers of mixed shipments must ensure that the two article types are invoiced and classified separately. Stainless-steel vacuum bottles have largely displaced glass-lined versions in consumer trade, and many finished units are sourced from East Asian manufacturers.
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Glass inner liners for vacuum flasks are classified separately under glassware headings rather than with the complete flask assembly. This split classification means that importers bringing in replacement glass inners must use a different tariff heading than the one covering complete vacuum vessels with cases. Mixing the two on a single entry line is a common error that can trigger CBP scrutiny.
The heading specifically covers vacuum flasks and vessels 'complete with cases,' meaning the case is part of the classifiable article. Flasks imported without cases, or cases imported separately, may be classified differently. Importers should confirm that their shipments include the complete article as described to avoid reclassification at the port of entry.
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Monthly import values over time