Ion Exchange Water Softener System from Japan
Residential water softener using cation exchange resin to remove hardness minerals (calcium, magnesium) from water, preventing scale buildup. Classified under HTS 8421.21.00.00 as water purifying apparatus.
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
• Specify resin type (sodium vs. potassium) and exchange capacity in documentation
• Include brine tank and regeneration system details for complete system classification
• Test for NSF/ANSI 44 certification compliance