U.S. imports of Machinery for Filtering and Purifying Water (SITC 74361) totaled $170.1M in August 2026, imported from 65 countries.
Importers of Machinery for Filtering and Purifying Water paid $15.8M in duties in August 2026, an average duty rate of 9.35% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataWater filtration and purification machinery — including membrane systems, sand filters, UV treatment units, and reverse-osmosis equipment — is a widely traded capital goods category serving municipal utilities, industrial process water treatment, and potable water infrastructure projects. The heading is limited to water as the process medium; equipment designed for beverages or other liquids falls under separate classifications. Importers supplying municipal or drinking-water treatment projects should confirm that equipment meets NSF/ANSI certification requirements, which many US utilities mandate contractually.
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5.4K import shipments a month
The dividing line is the process medium: machinery specifically designed and used to filter or purify water (including potable, process, and wastewater treatment applications) falls under this heading. Equipment designed to filter beverages other than water — such as beer, wine, or juice — is classified under the dedicated beverage filtration machinery heading.
While water purification machinery is not subject to mandatory FDA or USDA border admissibility review, equipment intended for drinking water contact in US municipal or commercial applications is typically required to meet NSF/ANSI Standard 61 (drinking water system components) or NSF/ANSI Standard 58 (reverse osmosis systems). Importers should obtain manufacturer certification documentation before tendering for public utility contracts.
Basic heading 116 of 642 in section 7
Basic heading 74361 · $170.1M of $172.0B
Imports · August 2026
origin
China pays 29.5% duty; Canada 0.4%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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ImportsExports
Imports
$170.1MYoY · free account
Exports
$90.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.9B of Machinery for Filtering and Purifying Water.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.