The only A/C Sealant available that is Certified to meet SAE J2670 Standard! Unlike other A/C sealants, LeakGuard is an oil based sealant that does not have any of the dangerous side effects. It will not harden, crystallize, clog the A/C system or harm the recovery equipment. Professional A/C Stop Leak, Permanently seals leaks, Meets SAE J2670 A/C additive standard, Safe for all A/C systems, Contains concentrated A/C dye, Specifically formulated for slow leaks that can occur over a 6-12 month period (or a leak rate of 25oz/708g) per year. It can safely remain in the A/C system and prevent leaks from occurring in the future - an excellent preventive maintenance product!   Leakguard™/Spotgun™ Jr. Kit Injection System, (2) Leak Guard Cartridges With UV Dye, A/C Low Side Adapter Hose And Bleed Adapter. Certified To Meet SAE J-2670

Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov