Rx11-flush Liquid is a high-performance solvent specifically engineered to remove contaminants from AC/R systems. Just like the aerosol Rx11-flush, this liquid version is powerful enough to flush away sludge, carbon deposits, old oil, acids, moisture, and other contaminants dissolved in the oil layer that remains in line sets. With the convenience of a liquid, you can add as much or as little to the charging tank to blast away contaminants in the system. Because it has an optimal boiling point, is non-flammable and the strongest flush on the market, it is the only trusted option for full-system cleanouts after compressor burnouts or for effectively restoring old line sets.