Membrane Filter Module for Ultrapure Water from Mexico
Cross-flow membrane modules (microfiltration/ultrafiltration) producing ultrapure water for semiconductor fabrication. HTS 8421.29.00 includes these as other purifying apparatus for liquids, critical for removing submicron particles. Excludes reverse osmosis in some contexts.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide pore size and rejection rate data distinguishing from RO; semiconductor cleanroom certifications required; avoid parts classification by importing complete modules