Mineral Wool Pipe Sound Attenuator from Japan
Pipe coverings incorporating mineral wool for acoustic dampening in ventilation systems. Qualifies under HTS 6806.10.00.60 for sound-absorbing mineral wool pipe articles.
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
• Include NRC (noise reduction coefficient) test data to substantiate sound-absorbing claim
• Avoid bundling with duct silencers if they qualify as Chapter 94 prefabricated building articles
• Density labeling prevents confusion with lower-density bulk fills