8421.39.01.20 Electrostatic precipitators

Statistical reporting number under subheading 8421.39.01, Filtering or purifying machinery and apparatus for gases: other.

In chapter 84, Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof; heading 8421, Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof.

8421.39.01.20 as printed in HTS Revision 20 (2026)

Description	Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof Filtering or purifying machinery and apparatus for gases Other Other Industrial gas cleaning equipment Electrostatic precipitators
Units of quantity	No.
General rate (column 1), printed on 8421.39.01	Free
Special rate (column 1), printed on 8421.39.01	none printed
Column 2 rate, printed on 8421.39.01	35%

Column 2 rates apply to products of the countries listed in General Note 3(b) of the schedule: the Republic of Belarus, Cuba, North Korea and the Russian Federation (Revision 20 (2026)).

Footnotes

The schedule prints no footnotes on this line.

Chapter 99 headings this line cites

None of this line's footnotes or rate columns cite a chapter 99 heading. Chapter 99 measures can still cover the line through their U.S. notes.

The other statistical lines under 8421.39.01

HTS number	Description	Units
	Dust collection and air purification equipment:
8421.39.01.05	For machine tools of headings 8456 through 8465, inclusive	kg
8421.39.01.15	Other	kg
	Other:
	Industrial gas cleaning equipment:
8421.39.01.20	Electrostatic precipitators	No.
8421.39.01.30	Other	No.
8421.39.01.40	Gas separation equipment	No.
	Other:
8421.39.01.60	Pneumatic fluid power filters, rated at 550 kPa or greater	No.
8421.39.01.90	Other	kg

What this page leaves to your broker

This page quotes the schedule. It does not add the rates together, and it does not say whether a chapter 99 heading applies to a shipment: that turns on the country of origin, the dates and the U.S. notes to chapter 99. Section 301, Section 232 and other chapter 99 measures list the goods they cover in those notes and in Federal Register notices, so a line can be covered by a heading its footnotes never cite. A licensed customs broker makes the determination.

Email me when 8421.39.01.20 changes

When USITC publishes a new revision, we compare this line and every chapter 99 heading it cites, and email you the old and new text side by side. A 10-digit watch also covers the rates printed on 8421.39.01.

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Open 8421.39.01.20 on hts.usitc.gov

Other lines in heading 8421

8421.21.00 For filtering or purifying water
8421.22.00 For filtering or purifying beverages other than water
8421.23.00 Oil or fuel filters for internal combustion engines
8421.29.00 Filtering or purifying machinery and apparatus for liquids: other
8421.31.00 Intake air filters for internal combustion engines
8421.32.00 Catalytic converters or particulate filters, whether or not combined, for...
8421.91.20 Drying chambers for the clothes-dryers of subheading 8421.12 and other parts...
8421.91.40 Furniture designed to receive the clothes-dryers of subheading 8421.12
8421.91.60 Of centrifuges, including centrifugal dryers: other
8421.99.01 Parts: other

Built September 29, 2026 from HTS Revision 20 (2026) (USITC release 2026HTSRev20, published September 23, 2026, current since September 28, 2026). The schedule changes often; USITC's own site always has the current text.