HFC-143a R-404A Replacement Blend
Low-GWP refrigerant mixture with over 15% HFC-143a designed as drop-in replacement for R-404A in medium/high-temp refrigeration. Contains HFC-143a blended with other HFCs for cascade systems. Meets 3827.61.00.00 criteria for HFC-143a dominant mixtures.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mixture also contains HCFCs
Presence of any hydrochlorofluorocarbons shifts classification to the HCFC-containing mixtures subheading.
If marketed primarily as chemical preparations for non-refrigerant industrial cleaning
End-use as degreaser or solvent preparation moves it from refrigerant mixtures to general chemical preparations.
If pre-charged into refrigeration equipment components
Refrigerants inside machinery parts are classified with the equipment, not separately as chemical mixtures.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed blend composition certificate showing ≥15% HFC-143a; customs often requires GC-MS analysis verification
• Register with EPA's HFC phasedown program and maintain chain-of-custody records from manufacturer to importer
• Avoid classifying as 'used refrigerant' which requires different waste handling under 3825; ensure virgin product status
Related Products under HTS 3827.61.00.00
HFC-143a Refrigerant Blend R-507
Azeotropic refrigerant blend consisting of 50% HFC-125 and 50% HFC-143a, exceeding 15% HFC-143a by mass. Used in commercial refrigeration systems like supermarket display cases and transport refrigeration. Classified under 3827.61.00.00 due to high HFC-143a content without CFCs or HCFCs.
HFC-143a Industrial Chiller Fluid
Specialty HFC blend for centrifugal chillers containing ≥15% HFC-143a by mass, used in large HVAC systems for commercial buildings. Optimized for high-pressure applications without ozone-depleting substances. Falls under 3827.61.00.00 per HFC-143a concentration requirements.
HFC-143a Supermarket Refrigerant R-508
Azeotropic blend of HFC-23 and HFC-143a (>15% by mass) for low-temperature supermarket freezers and ice cream cabinets. Provides superior cascade refrigeration performance. Qualifies for 3827.61.00.00 due to specified HFC-143a content.
HFC-143a Transport Refrigeration Blend
HFC mixture exceeding 15% HFC-143a for refrigerated trucks and containers, providing reliable cooling for perishable goods transport. Compliant with HFC-only specifications excluding CFCs/HCFCs. Classified in 3827.61.00.00 based on HFC-143a mass threshold.