R-454C Mildly Flammable Refrigerant from China
A2L blend of R-32 and HFO-1234yf for new residential heat pump systems. Classified under HTS 3827.90.90.00 as other halogenated mixtures with mild flammability (A2L safety class). Meets latest global standards.
Duty Rate — China → United States
38.7%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include A2L flammability mitigation device requirements documentation
• Train personnel on UL 60335-2-40 safety standards for A2L refrigerants
• Monitor HFO stability as it degrades under certain storage conditions