HTS 8421
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof
| Code | Description | Unit | General | Special | Column 2 | Source |
|---|---|---|---|---|---|---|
| Centrifuges, including centrifugal dryers | ||||||
| 8421.11.00.00 | Cream separators | No. | Free | 25% | USITC | |
| 8421.12.00.00 | Clothes-dryers | No. | Free | 25% | USITC | |
| 8421.19.00.00 | Other | No. | 1.3% | Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | USITC |
| Filtering or purifying machinery and apparatus for liquids | ||||||
| 8421.21.00.00 | For filtering or purifying water | No. | Free | 35% | USITC | |
| 8421.22.00.00 | For filtering or purifying beverages other than water | No. | Free | 35% | USITC | |
| 8421.23.00.00 | Oil or fuel filters for internal combustion engines | No. | 2.5% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | USITC |
| 8421.29.00 | Other | Free | 35% | USITC | ||
| 8421.29.00.05 | Refrigerant recovery and recycling units | No. | Free | 35% | USITC | |
| Other | ||||||
| 8421.29.00.15 | Oil-separation equipment | No. | Free | 35% | USITC | |
| Other | ||||||
| 8421.29.00.40 | Hydraulic fluid power filters, rated at 1,000 kPa or greater | No. | Free | 35% | USITC | |
| 8421.29.00.65 | Other | No. | Free | 35% | USITC | |
| Filtering or purifying machinery and apparatus for gases | ||||||
| 8421.31.00.00 | Intake air filters for internal combustion engines | No. | 2.5% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | USITC |
| 8421.32.00.00 | Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | No. | Free | 35% | USITC | |
| 8421.39.01 | Other | Free | 35% | USITC | ||
| Dust collection and air purification equipment | ||||||
| 8421.39.01.05 | For machine tools of headings 8456 through 8465, inclusive | kg | Free | 35% | USITC | |
| 8421.39.01.15 | Other | kg | Free | 35% | USITC | |
| Other | ||||||
| Industrial gas cleaning equipment | ||||||
| 8421.39.01.20 | Electrostatic precipitators | No. | Free | 35% | USITC | |
| 8421.39.01.30 | Other | No. | Free | 35% | USITC | |
| 8421.39.01.40 | Gas separation equipment | No. | Free | 35% | USITC | |
| Other | ||||||
| 8421.39.01.60 | Pneumatic fluid power filters, rated at 550 kPa or greater | No. | Free | 35% | USITC | |
| 8421.39.01.90 | Other | kg | Free | 35% | USITC | |
| Parts | ||||||
| 8421.91 | Of centrifuges, including centrifugal dryers | USITC | ||||
| 8421.91.20.00 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | No. | Free | 25% | USITC | |
| 8421.91.40.00 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | No. | Free | 25% | USITC | |
| 8421.91.60.00 | Other | kg | Free | 25% | USITC | |
| 8421.99.01 | Other | Free | 35% | USITC | ||
| 8421.99.01.40 | Parts of machinery and apparatus for filtering or purifying water | kg | Free | 35% | USITC | |
| 8421.99.01.80 | Other | kg | Free | 35% | USITC | |
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Source: USITC, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20, effective 28 September 2026. Heading 8421 at USITC
Not shown: the additional duties of Chapter 99 (such as Section 301 and Section 232), anti-dumping and countervailing duties, quotas and the legal notes.
This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.