Check the listing for details. SUPERCOOL 9497 A/C Leak Detection Dye,1 Oz 4LTU7. Condition: New. Listed at 8.25 USD. Leak Detection Dye, Compatible Fluid Type R-1234yf Refrigerant, R-134a Refrigerant, R-12 Refrigerant, Series Super Dye, Container Type Bottle, Container Size 1 oz, Color Green, Standards SAE, Product Type Leak Detection Dye, Boiling Point 570 Degrees F, Features Compatible with PAG, Ester, PAO and Mineral Oils, Does not Contain Solvents, Will not Harm A/C Systems or Recovery Equipment, Flash Point 430 Degrees F, Fluorescent Fluorescent, Net Weight 1 oz, Product Form Liquid SUPERCOOL(TM) Super Dye is a UV (ultraviolet) detector dye effective in R134a and R12 refrigeration systems. This SAE certified fluorescent formula makes it easy to spot leaks under ultraviolet light. • Compatible with PAG, ester, and mineral oils. • Does not contain solvents. • Will not harm air conditioner system.