The TrueLine™ Flush Gun is a stainless steel canister spray gun nozzle that allows for one-handed operation with squeeze-type nozzle. The TrueLine Flush Fun is designed for the simplest access to piping and line sets. The TrueLine System Flush line is an all-in-one solution for cleaning up HVACR systems after burnouts, before refrigeration conversions and for new system or component installations. This safe but powerful solvent removes sludge, carbon residues, oils, acids, moisture and particulates from condensers, evaporators and line sets with no long term environmental or health risks.