HBFC-133a Refrigerant Transition Blend from Canada
Temporary refrigerant mixture containing HBFC-133a (CHFBrCH2F) for legacy chiller systems during phase-out transitions. Falls under HTS 3827.12.00.00 as an HBFC-containing mixture of halogenated propane derivatives. Primarily used in industrial refrigeration retrofits.
Duty Rate — Canada → United States
13.7%
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
• Secure essential-use exemption from UNEP Montreal Protocol for any HBFC refrigerant imports post-1996 ban
• Provide equipment compatibility certification showing no CFC/HFC alternatives exist for specific application