← All chapters

Section XVI — Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

Chapter 84 — Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

Heading 8421 — Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases.

National subdivision 8421.3 — Filtering or purifying machinery and apparatus for gases:

Subheading

8421.32 Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines

Common commodities
Cat converter for gasoline engineDiesel particulate filter assemblyExhaust gas purifying catalystDPF replacement unitGasoline engine exhaust scrubberHeavy-duty diesel exhaust filterTruck exhaust gas catalytic converterCarbon monoxide reducing exhaust componentAutomobile DPF with ceramic substrateExhaust particulate filter for heavy machinery

HS codes