Expanded Clay Pebbles Hydroponic Grow Media from Canada
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.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide expansion process specs to confirm lightweight insulating properties
• Sterilization certificates prevent agricultural quarantine issues