Harmonized Tariff Schedule of the United States · HTS code · HS 8421.29
8421.29.00: Filtering or purifying machinery and apparatus for liquids: other
Other liquid filtering machinery
Not declarable on its own: use one of its 4 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 8421 Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:
- Filtering or purifying machinery and apparatus for liquids:
- 8421.29.00 Other
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
No additional measures recorded for this origin.
Subdivisions
- 8421.29.00 Other Free
- 8421.29.00.05 Refrigerant recovery and recycling units No.
- 8421.29.00.15 Oil-separation equipment No.
- 8421.29.00.40 Hydraulic fluid power filters, rated at 1,000 kPa or greater No.
- 8421.29.00.65 Other No.
Same subheading in other tariffs
8421.29 Filtering or purifying machinery and apparatus for liquids: other
UK Free Third-country duty 3 tariff lines 
EU Free – 1.7% Third-country duty 2 tariff lines · average 0.9% 
Türkiye 1.7% Third-country duty 3 tariff lines 
Canada Free Third-country duty 2 tariff lines 
Mexico Free – 5% Third-country duty 8 tariff lines · average 1.3% 
Brazil 7.2% – 20% Third-country duty 5 tariff lines · average 13.4% 
Argentina Free – 12.6% Third-country duty 9 tariff lines · average 9.8% 
Peru Free Third-country duty 5 tariff lines 
New Zealand Free – 5% Third-country duty 12 tariff lines · average 2.1% 
Japan Free Third-country duty 2 tariff lines 
Taiwan Free – 3% Third-country duty 3 tariff lines · average 2% 
GCC Free – 5% Third-country duty 2 tariff lines · average 2.5% 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 1.7% – 15% Third-country duty 2 tariff lines · average 8.3% 
Nigeria 5% Third-country duty 1 tariff line Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N363849 U.S. CBP
The tariff classification of strainers from China
- N362507 U.S. CBP
The tariff classification of the Fournier Rotary Press from Canada
- N359514 U.S. CBP
The tariff classification of an air and dirt separator from Italy
- N359518 U.S. CBP
The tariff classification of a combination separator from Italy
- N359520 U.S. CBP
The tariff classification of a hydro separator from Italy
- N359513 U.S. CBP
The tariff classification of an air separator from Italy
- N359032 U.S. CBP
The tariff classification of a pressure filter from Finland
- N355980 U.S. CBP
The tariff classification of a dryer and a coil from China
Legal notes
HTS code 8421.29.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 8421.29 (filtering or purifying machinery and apparatus for liquids: other).
The general duty is free.
4 statistical sub-lines below it are used in the declaration.
For the same subheading, the UK duty is free, the EU duty is 0%–1.7%, the Türkiye duty is 1.7%, the Canada duty is free, the Mexico duty is 0%–5%, the Brazil duty is 7.2%–20%, the Argentina duty is 0%–12.6%, the Peru duty is free, the New Zealand duty is 0%–5%, the Japan duty is free, the Taiwan duty is 0%–3%, the GCC duty is 0%–5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 1.7%–15% and the Nigeria duty is 5%.
The United States imported goods of subheading 8421.29 worth US$2bn in 2024; the largest supplier was Mexico, and the United Kingdom ranked 7th with US$72m.
Questions and answers
What is the USA import duty for HTS code 8421.29.00?
The general duty in the Harmonized Tariff Schedule of the United States is free. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 8421.29 as a whole, the largest supplier in 2024 was Mexico (US$360m), followed by Germany.
Typical products
Everyday names, not part of the legal text.