Pumice Stones for Pool Filter Media from Japan
Lightweight pumice stones sized for swimming pool and spa filtration systems. Classified under HTS 2513.10.0080 as other pumice stone natural abrasives. High surface area traps particulates effectively.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Certify uniformity and absence of fines for backwash performance
• NSF/ANSI Standard 50 certification may be required for pool applications
• Bulk density testing prevents misclassification as lightweight aggregates