HVAC Heat Pump HFC-125 Blend R-463C from Japan
Next-generation heat pump refrigerant with 43% HFC-125, CO2, and HFOs for residential HVAC systems. HTS 3827.63.00.00 classification for pentafluoroethane dominant HFC mixtures. A2L classification enables higher efficiency split systems.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include AHRI Standard 700 purity certification and leak detection compatibility data
• Specify brazing material compatibility for copper/aluminum heat exchangers
• Register blend composition with ASHRAE nomenclature committee if new designation