A/C R134a Refrigerant Stop Leak 12 oz

While Super Seal will cover both metal & rubber, Stop Leak is a concentrated formula for rubber components only. Rubber leaks are the most common leaks that typically begin to warm up a system around 5-8 years. Anti-corrosion additives help protect A/C system against future metal leaks. Restores lost R134a refrigerant. Patented technology, stop leak additive meets SAE J2670 specifications. Contains 10 oz R134a / 2 oz Additive. Contains Max-Seal advanced dual chemistry. Provides better longer-lasting sealing of typical rubber leaks in O-rings, gaskets & hoses vs. standard stop leak products. Reconditions & rejuvenates A/C seals.