Nu-Calgon - Rx-Acid Scavenger provides a better, more convenient way to neutralized or "scavenge" acid in refrigeration, air conditioning systems after burnouts or during normal on-going systems maintenance. Normal dosage rate is 2 fl. oz. of Rx-Acid Scavenger for up to one gallon of system oil. That is 50% less than other acid neutralizing products. This "low treat" feature means far less material has to be added to the systems. Rx-Acid Scavenger is formulated for use with all lubricants - mineral, alkylbenzene and polyol ester. Use after system burnout to scavenge acid products in the system, or change a system with Rx-Acid Scavenger to neutralize acid conditions should they develop.