PRODUCT DESCRIPTION: Restores lost Refrigerant & Oil additives packaged to A/C system, Patented formulation with advanced chemicals developed for NASA USA; Eliminates moisture and neutralize acid from the system; Reduce cabin humidity and drier air improve comfort in car; Advanced seal rejuvenating ingredient to cure the hardened o-rings and prevent leaking. Providing better flow & improving cooling performance; Special polarized & modified power molecules clean and protect the system free from oil sludge, moisture and acid formation to extend service life of the whole A/C system. PRODUCT BENEFITS: Revitalizes A/C cooling capacity, colder fast. Stops leaks and conditions seals. Extends A/C life. No Tools Required, charging easy and fast. DIRECTIONS FOR USE: 1.Use For DIFM. Find A/C low-side port and remove cap. It is usually on a larger diameter metal tube that runs between the evaporator (dashboard side of engine) and compressor (on engine). 2.Start engine, turn A/C on MAX Cool with vents on high. 3.Shake the can well. 4.Hold can upside down and push Direct Charge connector onto low-side port for 30 seconds or until the can is empty. 5.Replace cap on low-side port.