Pro-Flush HVAC Flushing SolventA flushing solvent for A/C and refrigeration systems formulated for R-410A retrofits, refrigerant conversions and compressor burnouts. Compatible with all refrigerants and compressor oils. All solvents in Pro-Flush are non-VOC and conform to EPA SNAP standards: low toxicity and residue-free.Available as a kit or in a 16 oz. solvent refill. The kit makes servicing quick, easy, and safe, as well as assuring you get to the job site with all necessary hardware in hand for 1-stop servicing. The kit includes: 16 oz. container of Pro-Flush solvent, refillable Pro-¼Flush injector tool pressure tank, pressure relief valve for added safety, large rubber adapter that flushes up to 1-1/4' line sets, service hose.