U.S. exports of Filters and Purifying Machinery for Liquids, Not Elsewhere Specified (SITC 74367) totaled $259.2M in August 2026.
Importers of Filters and Purifying Machinery for Liquids, Not Elsewhere Specified paid $14.9M in duties in August 2026, an average duty rate of 10.34% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Filters and Purifying Machinery for Liquids, Not Elsewhere Specified imports of $144.1M in August 2026 ran 12% above the year-to-date monthly average of $128.6M.
Last updated: August 2026 dataResidual liquid filtration and purification equipment — covering hydraulic filters, industrial process liquid separators, chemical filtration systems, and other liquid-handling apparatus not dedicated to water, beverages, or engine fluids — serves a broad range of manufacturing and process industries. The NES designation means classification here requires ruling out the more specific liquid filtration headings first. Equipment in this category used in pharmaceutical or chemical manufacturing may be subject to additional buyer-side qualification requirements, though no mandatory US border admissibility review applies to the machinery itself.
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9.0K import shipments a month
Generally yes — hydraulic filters are not dedicated to water purification, beverage processing, or engine oil/fuel circuits, so they are appropriately classified under the NES liquid filtration heading. However, if a hydraulic filter is an integral part of a larger machine and classified with that machine as a whole, it would follow the classification of the principal machine. A licensed customs broker can advise on the correct approach for specific configurations.
The process medium and dedicated application are the determining factors. Machinery specifically designed to filter or purify water belongs in the water filtration heading; equipment designed for beverages other than water belongs in the beverage filtration heading. Equipment that processes other liquids — oils, chemicals, hydraulic fluids, industrial process streams — or that is genuinely multi-purpose falls into this NES category.
Basic heading 42 of 642 in section 7
Basic heading 74367 · $259.2M of $76.2B
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Exports · August 2026
destination
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$144.1MYoY · free account
Exports
$259.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.5B of Filters and Purifying Machinery for Liquids, Not Elsewhere Specified.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.