Fired Clay Chimney Liners from Canada

Cylindrical fired clay sections used to line interior chimney flues for heat and corrosion resistance in residential construction. HTS 6905.90.0050 covers these as other ceramic constructional goods. Distinguished from building bricks in 6904 by specific chimney application.

Duty Rate — Canada → United States

13.2%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Include flue dimension specs and firing certificates to prove constructional use

Test for water absorption under 3% if stoneware-like

Pitfall: importing with mortar as a set may trigger parts classification

Fired Clay Chimney Liners from Canada — Import Duty Rate | HTS 6905.90.00.50