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SITCSection 8
U.S. imports of instruments & apparatus for measuring or checking flow or level of liquids (SITC 87431) totaled $89.4M in April 2026, traded with 66 countries.
Importers of Instruments & Apparatus for Measuring or Checking Flow or Level of Liquids paid $6.6M in duties in April 2026 — an effective duty rate of 11% on $58.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataFlow meters, level gauges, and related liquid-measurement instruments classified here exclude utility supply meters and automatic regulating apparatus, placing them squarely in the precision instrumentation segment used by oil-and-gas, water treatment, and chemical processing industries. The N.E.S. (not elsewhere specified) qualifier means importers must confirm that a given device does not fall under a more specific SITC heading before applying this code. Correct classification is especially important for instruments subject to Section 301 tariff exposure depending on country of origin, as misclassification can trigger duty underpayments or overpayments on high-value capital equipment.
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The heading explicitly excludes supply meters (e.g., commercial water or gas meters billed to end-users) and automatic regulating or controlling apparatus. A device that only measures or checks—without automatically controlling flow or pressure—generally belongs here, but borderline cases should be reviewed with a licensed customs broker against the full SITC schedule notes.
Depending on the country of manufacture and the corresponding HTS classification, certain precision instruments in this category may be subject to Section 301 tariffs. Importers should verify the applicable HTS subheading and origin before entry, as duty treatment can vary significantly across product types within this broad heading.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $20.9M | $6.8M | -$14.1M |
| CANADA | $6.9M | $16.6M | +$9.6M |
| GERMANY | $14.5M | $8.1M | -$6.4M |
| CHINA | $5.3M | $6.2M | +$954K |
| UNITED KINGDOM | $5.8M | $4.0M | -$1.8M |
Monthly import values over time