Reverse Osmosis Water Purification System from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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