HTS heading 8421: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof
Heading 8421 of the US Harmonized Tariff Schedule covers Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.
Heading 8421 at a glance
- 14 rated tariff lines; 11 duty-free at the general (MFN) rate.
- Ad valorem general rates from 1.3% to 2.5%.
- Section 301 (products of China): 14 of 14 lines on a list in effect (List 1, List 3, List 4A).
- 4 Section 301 product exclusions in effect for heading 8421; each is listed on its line page with its end date.
Goods named in this heading (official line texts): Cream separators, Clothes-dryers, For filtering or purifying water, For filtering or purifying beverages other than water, Oil or fuel filters for internal combustion engines, Intake air filters for internal combustion engines, Catalytic converters or particulate filters, whether or not combined, for purifying or filteri…, Drying chambers for the clothes-dryers of subheading 8421.12 and other part.
Subheadings (6-digit)
- 8421.11: Centrifuges, including centrifugal dryers (1 line)
- 8421.12: Centrifuges, including centrifugal dryers (1 line)
- 8421.19: Centrifuges, including centrifugal dryers (1 line)
- 8421.21: Filtering or purifying machinery and apparatus for liquids (1 line)
- 8421.22: Filtering or purifying machinery and apparatus for liquids (1 line)
- 8421.23: Filtering or purifying machinery and apparatus for liquids (1 line)
- 8421.29: Filtering or purifying machinery and apparatus for liquids (1 line)
- 8421.31: Filtering or purifying machinery and apparatus for gases (1 line)
- 8421.32: Filtering or purifying machinery and apparatus for gases (1 line)
- 8421.39: Filtering or purifying machinery and apparatus for gases (1 line)
- 8421.91: Of centrifuges, including centrifugal dryers (3 lines)
- 8421.99: Parts (1 line)
All tariff lines in heading 8421
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 8421.11.00 | Centrifuges, including centrifugal dryers: Cream separators | Free | List 3 +25% | |
| 8421.12.00 | Centrifuges, including centrifugal dryers: Clothes-dryers | Free | List 4A +7.5% | |
| 8421.19.00 | Centrifuges, including centrifugal dryers: Other | 1.3% | List 1 +25% | |
| 8421.21.00 | For filtering or purifying water | Free | List 1 +25% (1 product exclusion may apply) | 1 |
| 8421.22.00 | For filtering or purifying beverages other than water | Free | List 1 +25% | |
| 8421.23.00 | Oil or fuel filters for internal combustion engines | 2.5% | List 3 +25% | |
| 8421.29.00 | Filtering or purifying machinery and apparatus for liquids: Other | Free | List 1 +25% | |
| 8421.31.00 | Intake air filters for internal combustion engines | 2.5% | List 3 +25% | |
| 8421.32.00 | Catalytic converters or particulate filters, whether or not combined, for purifying or filteri… | Free | List 1 +25% | |
| 8421.39.01 | Filtering or purifying machinery and apparatus for gases: Other | Free | List 1 +25% (2 product exclusions may apply) | 2 |
| 8421.91.20 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers… | Free | List 4A +7.5% | |
| 8421.91.40 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | Free | List 4A +7.5% | |
| 8421.91.60 | Of centrifuges, including centrifugal dryers: Other | Free | List 1 +25% | |
| 8421.99.01 | Parts: Other | Free | List 1 +25% (1 product exclusion may apply) | 1 |
All of chapter 84 · Chapter 84 rate summary · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.
🔔 Get a browser alert when US tariffs change (free, no email, one click to stop).