</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

R-421A HCFC Replacement Blend from Mexico

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.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Address hydrocarbon flammability in shipping papers; provide retrofit instructions; ensure blend stability testing documentation

R-421A HCFC Replacement Blend from Mexico — Import Duty Rate | HTS 3827.39.00.00