The FJC Flush Solvent, No. 2032, is a quart of ester oil-based flush for use in flushing a mobile air conditioning system. Designed to be used in the FJC Flush Gun, No. 2710. Developed specifically for use in air conditioning systems using refrigerants R12, R134a, and blends. Compatible with Mineral, Ester, Paraffin, and PAG oil. Removes moisture, ...