R-449A Low-GWP Refrigerant
R-449A (HFC/HFO mix of R-32, R-125, R-134a, HFO-1234yf) replaces R-404A in transport refrigeration. HTS 3827.69.00.00 for HFC-dominant blends without CFCs/HCFCs. Reduces carbon footprint in cold chain logistics.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dominant R-32 difluoromethane
If unblended, specific methane derivatives are Chapter 29.
If biodiesel-contaminated recovery blends
Fatty acid mixtures with HFCs could shift to biodiesel heading 3826.
If additized for engine anti-freeze
HFC-based coolants prepared with inhibitors are 3811 anti-freezing preps.
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Import Tips & Compliance
• Apply for HFC production/import allowances under AIM Act 2020 phasedown
• Document azeotropic stability—no fractionation in storage per ASHRAE standards
• Avoid recharge kits misclassification—declare as virgin product only
Related Products under HTS 3827.69.00.00
R-404A Refrigerant Blend
R-404A is a zeotropic HFC refrigerant mixture containing R-125, R-143a, and R-134a, used in commercial refrigeration systems like supermarket display cases. It falls under HTS 3827.69.00.00 as a mixture containing hydrofluorocarbons (HFCs) without CFCs or HCFCs. This classification applies to its role as a non-ozone-depleting cooling agent.
R-410A Air Conditioning Refrigerant
R-410A is an azeotropic HFC blend of difluoromethane (R-32) and pentafluoroethane (R-125) for high-pressure AC units. It qualifies for HTS 3827.69.00.00 as an HFC-only mixture without CFCs or HCFCs. Commonly used in new split-system air conditioners.
R-134a Replacement Blend ISCEON MO99
ISCEON MO99 is an HFC/HFO blend (R-448A variant) replacing R-134a in chillers and automotive AC, containing HFCs without CFCs/HCFCs. Classified under HTS 3827.69.00.00 for such mixtures. Offers lower GWP for retrofits.
Solstice N40X HFC Refrigerant
Solstice N40X (R-454A: HFC-32/HFO-1234yf 72/28%) for new AC systems, very low GWP. HTS 3827.69.00.00 applies to its HFC content without CFCs/HCFCs. A2L mildly flammable classification.
HFC-152a Aerosol Propellant
HFC-152a (1,1-difluoroethane) blend for water-based aerosol adhesives and cleaners. HTS 3827.69.00.00 for halogenated mixtures with HFCs, no CFCs/HCFCs. Eco-friendly alternative to hydrocarbons.
Nu-Calgon RX11 Flush Liquid
RX11-flush HFC solvent blend for cleaning refrigeration lines post-burnout. Contains HFCs in solvent mix, no CFCs/HCFCs, under HTS 3827.69.00.00. Removes moisture, acids, sludge.