Products A–Z
HS code for water purifying systems
8421.21
In the UK Trade Tariff’s list of everyday names, “water purifying systems” points to subheading 8421.21: for filtering or purifying water. Check the description and the notes of the chapter before declaring: the right code depends on what the goods are made of and how they are used.
In the UK Global Tariff, 8421.21 covers 2 tariff lines and the duty is duty-free.
The EU Combined Nomenclature has one tariff line for 8421.21; the duty is 1.7%.
8421.21 is a single line in the Turkish Customs Tariff Schedule, where the duty is 1.7%.
Duty rates compared
UK Free Third-country duty 2 tariff lines 
EU 1.7% Third-country duty 1 tariff line 
Türkiye 1.7% Third-country duty 1 tariff line 
USA Free General (MFN) 1 tariff line 
Canada Free Third-country duty 1 tariff line 
Mexico Free – 5% Third-country duty 5 tariff lines · average 2% 
Brazil 20% Third-country duty 1 tariff line 
Argentina 12.6% Third-country duty 2 tariff lines 
Peru Free Third-country duty 2 tariff lines 
New Zealand Free Third-country duty 1 tariff line 
Japan Free Third-country duty 1 tariff line 
Taiwan 3.4% – 4% Third-country duty 2 tariff lines · average 3.7% 
GCC 5% Third-country duty 4 tariff lines 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia Free Third-country duty 1 tariff line 
Nigeria 5% Third-country duty 2 tariff lines See also
Questions and answers
What is the HS code for water purifying systems?
Water purifying systems are classified under 8421.21 (For filtering or purifying water) in the Harmonized System. National tariffs add more digits; see the lines on this page.