Compressed Paper Pulp Filter Block for Swimming Pools
Dense blocks of paper pulp used in pool filtration systems to trap debris and fine particles from recirculating water. This product is classified in HTS 4812.00.00.00 for its paper pulp filter block construction.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of a complete pool filtration pump assembly
Assembled purifying machinery components go to 8421, excluding loose pulp blocks.
If recovered pulp testliner with Mullen burst ≥2 kPa·m²/g
Recycled pulp papers meeting testliner specs fall in 4805.24, not shaped filters.
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Import Tips & Compliance
• Include NSF/ANSI 42 or 50 certifications for pool filter compliance to ease FDA/CBP review
• Document block dimensions and flow rates precisely to distinguish from generic pulp products
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