Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

8421.21.00.00Tariff line

Classification path

Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof
8421
Filtering or purifying machinery and apparatus for liquids
For filtering or purifying water
8421.21.00.00

Rates of duty

General rate (Column 1)Free
Special—
Column 235%
UnitNo.

Printed page 2768

Measure flags

for origin CN, entry date 2026-10-26 · base rate Free

  • Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
  • China 301 List 1 (9903.88.01)9903.88.01Applies+25%8-digit subheading 8421.21.00 is on L1
  • 301 exclusion 9903.88.69 (by product description)9903.88.69ConditionalexemptMachinery for filtering water, submersible, powered by batteries, manually operated, such machinery designed for use in pools, basins, aquariums, spas or similar contained bodies of water — only the products described; expires 2026-11-09 11:59 p.m. EDT
  • PGAFDA FD1EPA EP5

Confirmed total 37.5% · max 37.5%Full duty breakdown →

U.S. → China →