Paper Pulp Filter Block for Water Purification from Mexico
A rigid block made from compressed paper pulp designed specifically for filtering impurities from drinking water in residential systems. It falls under HTS 4812.00.00.00 as it is a filter block explicitly made of paper pulp, meeting the heading's criteria for blocks, slabs, and plates used in filtration.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify the product is made predominantly from paper pulp via lab testing, as customs may require fiber content certification to confirm classification under 4812
• Include detailed technical specs on porosity, density, and filtration efficiency in import documentation to avoid reclassification as generic paperboard