HTS Number	Description	Unit of Quantity	General Rate of Duty	Details
8421	Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:
8421 1100.00	Cream separators	No.	Free	More
8421 1200.00	Clothes-dryers	No.	Free	More
8421 1900.00	Other	No.	1.3%	More
8421 2100.00	For filtering or purifying water	No.	Free	More
8421 2200.00	For filtering or purifying beverages other than water	No.	Free	More
8421 2300.00	Oil or fuel filters for internal combustion engines	No.	2.5%	More
8421 2900	Other		Free
8421 2900.05	Refrigerant recovery and recycling units	No.	Free	More
8421 2900.15	Oil-separation equipment	No.	Free	More
8421 2900.40	Hydraulic fluid power filters, rated at 1,000 kPa or greater	No.	Free	More
8421 2900.65	Other	No.	Free	More
8421 3100.00	Intake air filters for internal combustion engines	No.	2.5%	More
8421 39	Other:
8421 3940.00	Catalytic converters	No.	Free	More
8421 3980	Other		Free
8421 3980.05	For machine tools of headings 8456 through 8465, inclusive	kg	Free	More
8421 3980.15	Other	kg	Free	More
8421 3980.20	Electrostatic precipitators	No.	Free	More
8421 3980.30	Other	No.	Free	More