407C VS R22
Gas R407C is a blend of HFC gas designed for R22 replacement in air conditioning applications. Many manufactures designed equipment to suit this refrigerant. It's composition comprises: HFC-32 (23%), HFC-125 (25%), HFC 134a (52%). and mainly used in refrigeration system at low-medium temperature. It is non toxic and non flammable meeting the highest A1/A1 classification. Also R407a gwp is very low, only 1526 (100yr).