The Quest Ester 100 Universal Refrigerant Oil is a high-quality product designed for air conditioning systems. With a convenient 8 FL. OZ. volume, this sealed package offers a ready-to-use solution for maintaining and servicing your A/C unit. Manufactured in the United States by Quest, this oil is specifically formulated to provide efficient and effective performance. Trust in the brand's reputation for reliability and quality when it comes to protecting and prolonging the lifespan of your refrigerant system.