AllPoints 851306 ACID TEST

AllPoints 851306 ACID TEST THE ACID TEST;4 Complete Tests in Each Kit.;For detecting the presence and formation of acid;in air conditioning and refrigeration systems.;Easy to use. Results in seconds.;Non-toxic. Non-hazardous. Non-flammable.;Biodegradable;For use with all refrigerants.;Accurate results;BLUE or VIOLET - No acid present;GREEN - Moderately acidic;YELLOW - Acidic