Air Conditioning Flush 32 oz. Made by Fits Johnsen'sOne New 32 oz. Air Conditioning Flush Made by Johnsen's Johnsen's A C Flush is a fast and effective solvent based flushing agent designed to remove debris, sludge, mineral oil residue, and contaminants from automotive and equipment air conditioning system components. Use with a standard flush gun and shop air to thoroughly clean A C lines, condensers, evaporators, and other system components before recharging or replacing parts. Compatible with R 134a