| 8421.39.80 | 20 | Electrostatic precipitators | No. | | | |
| 8421.39.80 | 30 | Other | No. | | | |
| 8421.39.80 | 40 | Gas separation equipment | No. | | | |
| 8421.39.80 | 60 | Other: | | | | |
| 8421.39.80 | 60 | Pneumatic fluid power filters, rated at 550 kPa or greater | No. | | | |
| 8421.39.80 | 90 | Other | X | | | |
| 8421.91 | | Parts: | | | | |
| 8421.91 | | Of centrifuges, including centrifugal dryers: | | | | |
| 8421.91.20 | 00 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | X | Free | | 25% |
| 8421.91.40 | 00 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | X | Free | | 25% |
| 8421.91.60 | 00 | Other | X | Free | | 25% |
| 8421.99.00 | 40 | Parts of machinery and apparatus for filtering or purifying water | X | | | |
| 8421.99.00 | 80 | Other | X | | | |
| 8421.99.00 | | Other | | Free | | 35% |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
