SYSTEM PROTECT is a specialized, direct-inject HVAC acid neutralizer additive formulated to prevent moisture and acid damage inside the refrigerant circuit. It actively neutralizes and converts acids, then cleans and removes acidic residue—helping maintain the integrity and efficiency of refrigerant lines. Xpress Inject delivery installs in minutes with no mess. Compatible with all refrigerants except ammonia. Ideal for preventive maintenance HVAC programs, tune-ups, and service calls.