R-421A HCFC Replacement Blend
R-421A contains HCFC-22 with hydrocarbons as drop-in replacement for R-22 in residential AC systems. Classified HTS 3827.39.00.00 due to HCFC content despite hydrocarbon presence. Designed for existing R-22 equipment without oil change.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly hydrocarbon composition
High hydrocarbon content may classify as liquefied gas
If other halogenated mixtures not specified
Catch-all for halogenated derivatives not fitting specific subheadings
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Import Tips & Compliance
• Address hydrocarbon flammability in shipping papers; provide retrofit instructions; ensure blend stability testing documentation
Related Products under HTS 3827.39.00.00
R-401A HCFC Refrigerant Blend
R-401A is a zeotropic HCFC refrigerant blend containing HCFC-22, HCFC-152a, and HCFC-124, used primarily in commercial refrigeration systems. It falls under HTS 3827.39.00.00 as a mixture containing hydrochlorofluorocarbons (HCFCs) without CFCs. This blend provides efficient cooling for low and medium temperature applications.
HCFC-123 Chiller Refrigerant
HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) is used in centrifugal chillers for air conditioning large buildings. Classified under 3827.39.00.00 when imported in commercial mixtures containing HCFCs but no CFCs. Its low pressure characteristics make it ideal for energy-efficient HVAC systems.
R-409A HCFC Retrofit Blend
R-409A is an HCFC blend (HCFC-22/HCFC-142b/HCFC-124) designed as drop-in replacement for R-12 in automotive and refrigeration retrofits. Falls under HTS 3827.39.00.00 for HCFC mixtures lacking CFCs. Provides similar performance characteristics to phased-out CFC-12.
HCFC Foam Blowing Agent Mixture
Mixture containing HCFC-141b and HCFC-142b used as auxiliary blowing agents in polyurethane foam production for insulation panels. Classified under 3827.39.00.00 as HCFC mixtures for industrial chemical processes. Reduces foam density while maintaining thermal properties.
HCFC-22/R-407C Blend
Transitional refrigerant mixture combining HCFC-22 with HFC components (R-407C equivalent) for air conditioning systems during phaseout. HTS 3827.39.00.00 applies to HCFC-containing mixtures without CFCs. Balances performance with regulatory compliance.
Industrial HCFC Cleaning Solvent
HCFC-225ca/cb mixture used as precision cleaning solvent for electronics manufacturing and oxygen system cleaning. Falls under 3827.39.00.00 for HCFC solvent mixtures. Non-flammable with high solvency for fluorinated oils and greases.