HS Code for Water Filter Pitcher / Under-Sink Water Filter: 8421.21.00
The HS code for water filter pitcher / under-sink water filter is 8421.21.00. Import duty rates: EU 1.7%, US Free, UK 1.7%. Rates verified April 2026 against EU TARIC.
Domestic water filters — pitcher-type with activated carbon, and under-sink reverse osmosis systems
Email report
Email this HS code + duty table
Get the code, EU / US / UK rates, and source links in your inbox.
Get instant alerts when duty rates change
HS Code
8421 — Centrifuges; filtering or purifying machinery for liquids or gases
Use this classification
Get an email the moment EU, US, or UK changes this duty rate — or save the code for later.
64 duty-rate changes detected across EU / US / UK in the last 90 days. Free plan includes 3 monitored codes.
Classification Context
Chapter
Chapter 84 — Nuclear reactors, boilers, machinery
Heading
8421 — Centrifuges; filtering or purifying machinery for liquids or gases
Applicable Rule
GRI 1 — water filters and purifiers are machinery for filtering/purifying liquids under 8421.21
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
Domestic water filter pitchers (Brita-style, activated carbon gravity filter) are 8421.21. Under-sink reverse osmosis (RO) systems: 8421.21. Inline fridge water filters: 8421.21. Replacement filter cartridges: 8421.99 (parts). UV water sterilisers: 8421.29 or 8543.70 depending on whether UV function is primary. Water softeners (ion exchange resin): 8421.21. EU: 1.7%; UK: 1.7%; US: Free. REACH regulations require filter media not to leach harmful substances into drinking water.
MFN Duty Rates by Market
European Union
8421.21.00
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
8421.21.00
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
8421.21.00
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Related searches
More Plumbing & Sanitary Ware HS codes
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
Classify your own products with AI
Get HS codes with confidence scores, duty rates, and GRI rule explanations — in seconds.