Certified A/C Pro Auto Air Conditioning A/C Stop Leak & Detector pinpoints and seals common R-134a automotive air conditioning leaks in rubber hoses, gaskets and O-rings. Contains red dye that detects major defects that require mechanical repair. EF LDS-1 Auto Stop Leak, 20 cp Viscosity, 7 pH, 98 degree F Flash Point.

Product Features:

• Contains approximately 3 oz. of R-134a and additives
• Pinpoints and seals common R-134a A/C leaks in O-rings, gaskets and seals
• Red dye detects major defects requiring mechanical repair
• Formulated for all R-134a car A/C systems
• For use with all standard R-134a gauge and hoses
• Requires adaptor for use with self-sealing valve R-134a gauges and hoses (DVA-1 sold separately)
• EPA compliant self-sealing valve closes when dispenser is disconnected (requires adapter or EPA compliant hose)