Description: 3PCS/Set High Concentration R134a R410 R12 Air Conditioning A/C System Leak Test agent Car froze n tracer oil Automotive Air Conditioning Repair Tool 2.5ml Each Specification: State: liquid Capacity:2.5ml Each Usage: 1.The usage is the same as the froze n oil, join in low essure filling mouth, turn on the A/C switch (double bellows vehicles must be open air conditioning switch of front and back) 2.The fluorescent leak agent can loop in each section of the refrigerant piping. 3. A/C system running for 10 minutes, 4. Close the A/C with the engine. For low voltage line pressure balance and high pressure, make the low pressure pipeline leakage of refrigerant pressure Feature: -- Wide range of applications --Accuracy -- Easy to use -- pollution-free, environmentally friendly --Some cars use for a long time, some parts is aging, so that it occurs penetration. --Some leakage place by conventional methods difficult to detect. --Fluorescent oil coupled with fluorescent lamps, it is easy to check out the place leaks Note: 1.No Instructions Included. 2.Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) 3.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. 4.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. Package: 3* 2.5ml Fluorescent Oil