Reverse Osmosis Water Purification System from Mexico
A residential reverse osmosis system that uses a semi-permeable membrane to filter and purify water by removing dissolved solids, bacteria, and contaminants. It falls under HTS 8421.21.00.00 as machinery specifically designed for filtering or purifying water for household or small-scale use.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify system capacity and intended use (e.g
• residential vs. industrial) to confirm classification under 8421.21
• Include NSF/ANSI certification documentation to meet U.S. drinking water standards and avoid customs delays
• Label components clearly to distinguish from general liquid filtration machinery in 8421.19