Other

CN subheading 842129 is a residual subheading covering machinery for filtering or purifying liquids other than water filters (842121), beverage filters (842122) and oil filters for internal combustion engines (842123). This subheading includes industrial hydraulic oil filters, metalworking coolant filters, paint and varnish filters, acid and alkali filters and other specialised liquid filtration equipment. Classification follows the General Rules for the Interpretation (GRI), particularly rules 1 and 6. It is essential to distinguish liquid filters under this subheading from air and gas filters classified under subheadings 842131 to 842139. Parts for filtering equipment are classified under subheading 842199. For borderline cases Binding Tariff Information (BTI) ruling is recommended.

Importing filtering equipment under subheading 842129 into the EU requires compliance with the Union Customs Code and technical regulations depending on the filter application. The Machinery Regulation (EU) 2023/1230 applies to complete automated filtration installations. Pressure equipment must comply with the PED (2014/68/EU). Filters for chemical substances may be subject to REACH requirements regarding chemically resistant materials. CE marking and an EU declaration of conformity are required for machinery and pressure equipment. The importer must hold an EORI number and file a customs declaration with the correct CN code. Import documentation includes commercial invoice, technical specifications, conformity certificates and transport document. MFN and preferential rates should be verified in TARIC before each import.

Filtering equipment classified under subheading 842129 is used across a wide range of industrial processes. Hydraulic oil filters are employed in construction machinery, presses and hydraulic control systems. Coolant filters ensure the cleanliness of cooling-lubricating emulsions in metalworking, extending cutting tool life. In the chemical industry specialised filters purify acids, alkalis and solvents. The paint and coatings sector uses filters to remove contaminants from paints before application. In pharmaceuticals, sterilising filters ensure the purity of injection solutions. When importing complete filtration systems as kits, GRI rule 2a applies. Spare parts including filter cartridges are classified under 842199. Importers should verify duty rates and preferential treatment in TARIC before each import transaction.

CN code 8421 29 covers other liquid filters. Import requires Machinery Directive 2006/42/EC and relevant EN safety standards compliance. Customs clearance requires CE certificate, technical documentation and manufacturer's declaration of conformity. TARIC duty rates depend on the country of origin. Importers should verify applicable duty rates in the TARIC database and ensure all documentation is complete.