R-134a Replacement Blend ISCEON MO99 from Mexico
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.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide retrofit compatibility certificates; common issue is oil miscibility testing not documented
• Label with exact HFO/HFC ratios as HFOs may trigger separate regulations under 2903 if predominant
• Use temperature-compensated filling scales for accurate charge weights during customs weigh-in