Paper Pulp Slab Air Filter for HVAC Systems
Large slab of molded paper pulp used in heating, ventilation, and air conditioning units to capture dust and allergens. Classified under HTS 4812.00.00.00 due to its paper pulp composition and slab form factor for filtration purposes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If integrated into a full air filter cartridge assembly
Complete HVAC filter units are parts of machinery under 8414, excluding standalone pulp slabs.
If kraftliner with high burst strength >115g/m²
High-strength kraft paper for sacks or liners falls in 4804 if not specifically molded for filtration.
If molded as decorative filter molds rather than functional
Other molded paper articles without primary filter function go to 4823.
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Import Tips & Compliance
• Provide MERV rating certifications and airflow test data to substantiate filtration use and prevent shifts to generic paperboard
• Label clearly as 'paper pulp filter slab' with no plastic framing to maintain 4812 classification
Related Products under HTS 4812.00.00.00
Molded Paper Pulp Filter Plate for Wine Filtration
Plates molded from cellulose paper pulp for clarifying wine by removing sediments during production. HTS 4812.00.00.00 covers these as paper pulp filter plates.
Paper Pulp Filter Block for Aquarium Systems
Blocks of compressed paper pulp for biological and mechanical filtration in home and commercial aquariums. Classified under HTS 4812.00.00.00 for paper pulp filter blocks.
Industrial Paper Pulp Slab for Paint Filtration
Heavy-duty slabs from paper pulp for filtering impurities from industrial paints and coatings. HTS 4812.00.00.00 for filter slabs of paper pulp.
Paper Pulp Filter Plate for Coffee Brewing
Reusable plates of paper pulp for commercial coffee percolators to filter grounds. Under HTS 4812.00.00.00 as filter plates.
High-Density Paper Pulp Filter Block for Beer
Dense blocks for diatomaceous earth replacement in beer clarification. HTS 4812.00.00.00 filter blocks.
Paper Pulp Filter Block for Water Purification
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.