Carbon Block Filter End Caps from Japan
Precision-machined plastic caps sealing carbon block cartridges in water filtration housings. Essential retention components for water purification, HTS 8421.99.0140.
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
• Specify thread patterns (e.g
• 9-3/4" standard) and O-ring gland dimensions
• Include filter scoring data showing carbon block retention function