HS 842129 Other
Quick Answer: Products imported under HS 842129 enter the UK duty-free, the EU at rates up to 1.70% ad valorem, and the US at rates up to 35% ad valorem. This residual classification, "Other," applies to filtering or purifying machinery and apparatus for liquids or gases not specifically covered by preceding headings within Chapter 84. This includes a wide array of devices such as water filters, oil purifiers, and air filtration units. Importers and customs brokers should exercise caution, as the broad nature of this code necessitates careful examination of the specific product's function to ensure correct classification and avoid potential duty discrepancies. According to CustomTariffs data, while the UK offers duty-free entry, other jurisdictions present varying tariff levels that require diligent attention.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8421290000 | — | — | — |
| 8421292000 | 0.00 % | — | — |
| 8421298000 | — | — | — |
| 8421298010 | 0.00 % | — | — |
| 8421298090 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8421290000 | — | — | — |
| 8421292000 | 0.00 % | — | — |
| 8421298000 | — | — | — |
| 8421298010 | — | — | — |
| 8421298090 | 1.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8421290005 | — | — | ["No."] |
| 8421290040 | — | — | ["No."] |
| 84212900 | Free | — | — |
| 8421290015 | — | — | ["No."] |
| 8421290065 | — | — | ["No."] |
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 842129 cover?
This subheading covers "Other" filtering or purifying machinery and apparatus for liquids, not elsewhere specified or included within Heading 8421. According to the World Customs Organization (WCO) Harmonized System Nomenclature, this residual category captures devices designed for separating impurities from liquids that do not fit into more specific subheadings like those for water, oil, or gas. The USITC Harmonized Tariff Schedule (HTS) and the EU TARIC database confirm this broad scope, encompassing a wide array of filtration and purification equipment for various industrial, commercial, and domestic applications, provided they are not explicitly classified elsewhere.
What falls outside HS 842129?
The following products are excluded from HS 842129: machinery and apparatus for filtering or purifying water (HS 842121), for filtering or purifying oil or gas (HS 842122), and for filtering or purifying other liquids (HS 842123). Also excluded are centrifuges (HS 84211), dialysis apparatus (HS 842129.10), and machinery for treating solids by filtering (HS 842129.90). For instance, a household water pitcher with a built-in filter is classified under 842121, not 842129, due to its specific water purification function.
What are common classification mistakes for HS 842129?
A common error is misinterpreting the "Other" designation as a catch-all for any liquid filtration device. This often leads to incorrect classification when a more specific subheading exists within Heading 8421 or even in other Chapters. For example, mistaking a device primarily for gas purification for liquid purification would lead to an incorrect classification under 842129. Adherence to the General Rules for the Interpretation of the Harmonized System (GRI), particularly GRI 1 and GRI 3, is crucial to ensure accurate classification based on the most specific applicable heading and subheading.
How should importers classify products under HS 842129?
The correct procedure for classifying products under HS 842129 involves a systematic approach. Importers and customs brokers must first consult the WCO Harmonized System Explanatory Notes and the specific national tariff schedules, such as the USITC HTS or EU TARIC. They should identify the primary function of the apparatus and determine if it falls under a more specific subheading within Heading 8421 or elsewhere in the tariff. If the apparatus is indeed for filtering or purifying liquids and does not fit any other specific description, then 842129 is the appropriate classification.
How is the duty calculated for products under HS 842129?
A commercial industrial filter press for chemical processing, weighing 500 kg and declared at a customs value of $10,000 USD, would attract a US duty of $500.00. This is calculated using the Most Favored Nation (MFN) duty rate of 5.0% ad valorem, as published in the USITC Harmonized Tariff Schedule (HTS) for a similar item, applying the rate to the declared value: 5.0% × $10,000 USD = $500.00. Note that specific subheadings within 842129 may have different rates.
Which trade agreements reduce duties for HS 842129?
Several free trade agreements may reduce the applicable duty rate for HS 842129, including the United States-Mexico-Canada Agreement (USMCA), which can result in a duty rate of Free for qualifying goods originating from Canada or Mexico. The EU's Generalized Scheme of Preferences (GSP) can also offer reduced or Free duty rates for eligible products from developing countries. Documentation required to claim preference typically includes a self-certified origin statement for USMCA or a GSP Form A for GSP beneficiaries, depending on the specific agreement and jurisdiction.
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FAQ
What is the general import duty rate for HS code 842129?
HS code 842129 covers 'Other' filtering or purifying machinery and apparatus for liquids or gases, not elsewhere specified. The Most Favored Nation (MFN) duty rate in the United States is 0.00% ad valorem, as per the US Harmonized Tariff Schedule. However, it is crucial to verify the specific tariff schedule of the importing country, as rates can vary significantly. For instance, the UK Trade Tariff lists a duty rate of 3.5% for goods classified under 8421.29.20.
How is the duty calculated for an import under HS 842129 if a duty rate applies?
The duty calculation typically depends on whether the rate is ad valorem (a percentage of the value) or specific (a fixed amount per unit). For example, if a product classified under HS 842129 in the UK has a duty rate of 3.5% ad valorem, and the customs value of the imported goods is $10,000, the duty would be calculated as: $10,000 (Customs Value) × 0.035 (Duty Rate) = $350. Always ensure you are using the correct customs value, which usually includes the cost of the goods, insurance, and freight (CIF) to the port of importation.
Are there preferential duty rates available for goods classified under HS 842129 through trade agreements?
Yes, preferential duty rates may be available depending on the origin of the goods and the trade agreements in place between the exporting and importing countries. For example, goods originating from countries with a Free Trade Agreement (FTA) with the United States might qualify for duty-free entry (0.00%) under HS 842129, even if the MFN rate is higher. Importers and customs brokers must obtain a valid Certificate of Origin from the exporter to claim preferential treatment. Always consult the specific trade agreement text and the importing country's tariff schedule for eligibility criteria and required documentation.
What documentation is typically required for customs clearance of goods classified under HS 842129?
Standard documentation for customs clearance of goods under HS 842129 generally includes a commercial invoice detailing the description, quantity, and value of the goods; a packing list; a bill of lading or air waybill; and potentially a certificate of origin if preferential duty rates are claimed. Depending on the specific nature of the 'filtering or purifying machinery and apparatus,' additional documentation such as technical specifications, safety certifications, or import permits might be required by the importing country's regulatory agencies to ensure compliance with health, safety, or environmental standards.
What are the key criteria for classifying machinery as 'Other' under HS 842129, as opposed to other subheadings within 8421?
HS code 8421 is broadly for centrifuges, and filtering or purifying machinery and apparatus. Subheadings within 8421 cover specific types, such as machinery for filtering or purifying water (8421.21) or oil/fuel (8421.23). HS code 842129 is designated for 'Other' filtering or purifying machinery and apparatus for liquids or gases that do not fit into the more specific subheadings. Classification hinges on the primary function of the apparatus. If a machine's principal purpose is filtering or purifying a liquid or gas, and it is not specifically provided for elsewhere in heading 8421 (e.g., it filters air for industrial processes, or purifies chemicals not covered by water or oil categories), then 842129 is the appropriate classification. Consulting the Explanatory Notes to the Harmonized System (WCO) and the specific tariff rulings of the importing country is essential for accurate classification.