HS Code 842121
For filtering or purifying water
Official description: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases : Filtering or purifying machinery and apparatus for liquids : For filtering or purifying water
Also searched as: water filter, water purifier, water filtration system, reverse osmosis system, water treatment equipment
Classification
How 842121 breaks down
Nuclear reactors, boilers, machinery and mechanical appliances; parts
Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases
For filtering or purifying water
Covered products
What products fall under HS code 842121?
Buyers sourcing for filtering or purifying water from 1688 commonly describe it in these ways. If your product matches, 842121 is likely the right 6-digit starting point — confirm material and intended use against the official tariff.
Import duty by market
Where to check the import duty for HS 842121
The 6-digit code is universal, but duty, VAT and GST are set by the destination country and depend on the full national tariff line with China as the country of origin. Start from the official source for your market.
United States
USITC / CBP · Harmonized Tariff Schedule (HTS)
European Union
TARIC · Access2Markets
United Kingdom
HMRC · UK Integrated Online Tariff
Canada
CBSA · Canadian Customs Tariff
Australia
ABF · Australian customs tariff
Singapore
Singapore Customs · Singapore Trade Classification (HS)
Compare the real China-origin import tax across markets
Use the HS & import duty checker to estimate duty + VAT/GST for 842121 by destination before you pay a 1688 supplier.
Heading 8421
Other HS codes under 8421
Subheadings in the same 4-digit heading — "Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases". If 842121 is not an exact match, one of these may classify your product more precisely.
Questions
HS code 842121: common questions
What is HS code 842121?
HS code 842121 is the World Customs Organization 6-digit HS 2022 subheading for "Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases : Filtering or purifying machinery and apparatus for liquids : For filtering or purifying water". The first two digits (84) are the chapter — Nuclear reactors, boilers, machinery and mechanical appliances; parts — and digits 3-4 (8421) are the heading. Countries add further digits (8-10) for their national tariff line.
What products fall under HS 842121?
Common products classified under 842121 include water filter, water purifier, water filtration system, reverse osmosis system, water treatment equipment and similar items matching for filtering or purifying water. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 842121?
Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.
Is HS code 842121 the same in every country?
The first 6 digits (842121) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.
Can I trust the HS code a 1688 supplier gives me?
Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.
Chapter 84
Explore Nuclear reactors, boilers, machinery and mechanical appliances; parts
Sourcing for filtering or purifying water from 1688?
Get a written pre-payment check — classification clues, China-origin landed cost, and supplier risk — before you commit. 5,754 HS codes covered.