Expanded Clay Pebbles Hydroponic Grow Media
Lightweight clay balls expanded at high temperature for hydroponic plant support and drainage. Classified in HTS 6806.90.00 as expanded mineral material articles for thermal insulation properties.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unexpanded natural clay
Fired and expanded clay changes from raw mineral (chapter 25) to manufactured article.
If molded into terracotta pots
Shaped expanded clay pottery becomes chapter 69 ceramic ware.
If packaged as prepared chemical culture media
Mixtures with fertilizers for retail sale may fall under chemical preparations.
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Import Tips & Compliance
• Provide expansion process specs to confirm lightweight insulating properties
• Sterilization certificates prevent agricultural quarantine issues
Related Products under HTS 6806.90.00
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Perlite Loose-Fill Insulation Bags
Bagged expanded perlite granules for attic loose-fill insulation applications. HTS 6806.90.00 covers these expanded mineral materials packaged as insulating articles.
Rock Wool Insulation Batt
A pre-cut batt made from spun rock wool fibers, designed for thermal and acoustic insulation in walls and ceilings. It falls under HTS 6806.90.00 as a heat-insulating and sound-absorbing article of mineral material, not classified under headings 6811, 6812, or chapter 69.
Exfoliated Vermiculite Insulation Board
Compressed boards of expanded vermiculite used for fire-resistant insulation in construction. Classified under HTS 6806.90.00 as an article of expanded mineral material for heat-insulating purposes, distinct from mixtures of 6811 or ceramics.
Mineral Wool Acoustic Ceiling Tiles
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