R134a STOP LEAK Charge, 4 oz. Can, For R-134a Systems, K28 Can Taper

(1) R134a STOP LEAK Charge, 4 oz. Can, Leak Stop For R-134a systems. (1) K28 Top-Mount, Screw-on can taper with 1/4' male flare hose connection. **Always charge in the "INVERTED" position! * We are a UPS Certified Hazardous Materials Shipper and this item will ship legally with all required information.   This can requires a K28 Can Taper which is included! Aerosol For Automotive A/C Systems or Commercial Refrigeration Systems. With age, o rings and seals will shrink and deteriorate. When Stop-Leak for R134a Systems is added to your a/c or refrigeration systems, it reconditions the rubber o rings, compressor gaskets, service valve seals and expansion Valve Body leaks! When the R134a Stop Leak product is installed in an air conditioning or refrigeration system, the product mixes with the refrigerant and oil. As the product circulates in the system, it comes in contact with the o’rings and seals causing them to swell, resulting in "no leak". Stop leak will not repair larg