26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.
Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof: › Filtering or purifying machinery and apparatus for liquids:
For filtering or purifying water
Source units: No.
Reported average: 0%.
Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.
National lines included: 1 of 1. Excluded from the average: 0.
Reported ad-valorem range: 0%–0%.
Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.
Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.
WITS observation for this code and year
UN Comtrade H6 descriptions (HS 2022)
WITS API definitions: reported averages and excluded national lines
Direct HS code answer for United States
The source reports an indicative HS6 MFN average of 0.00% (2023 MFN average) for Machinery; for filtering or purifying water.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.
0.00% (2023 MFN average)
not assessed
Import planning
Request a one-page research summary with source checks, landed-cost inputs, and points to verify for HS code 842121 in United States.
Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.
| HS Code | Description | Duty |
|---|---|---|
| 842111 | Centrifuges; cream separators | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842112 | Centrifuges; clothes-dryers | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842119 | Centrifuges; n.e.c. in heading no. 8421, including centrifugal dryers (but not clothes-dryers) | 1.30% (2023 MFN average)WITS 2023 historical MFN average |
| 842122 | Machinery; for filtering or purifying beverages other than water | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842123 | Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines | 2.50% (2023 MFN average)WITS 2023 historical MFN average |
| 842129 | Machinery; for filtering or purifying liquids, n.e.c. in item no. 8421.2 | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842131 | Machinery; intake air filters for internal combustion engines | 2.50% (2023 MFN average)WITS 2023 historical MFN average |
| 842132 | Machinery; catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842139 | Machinery; for filtering or purifying gases, other than intake air filters, catalytic converters or particulate filters for internal combustion engines | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842191 | Centrifuges; parts thereof, including parts for centrifugal dryers | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
| 842199 | Machinery; parts for filtering or purifying liquids or gases | 0.00% (2023 MFN average)WITS 2023 historical MFN average |
Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.