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