This is an 8 oz cartridge of A/C Ester Oil with a viscosity of 100.

Porsche

• Ester Oil: This is a type of synthetic oil specifically designed for use in air conditioning systems. Ester oils are known for their stability and compatibility with various refrigerants. They are often used in systems that have been retrofitted to use newer refrigerants.
• Viscosity 100: Viscosity refers to the thickness of the oil. A viscosity of 100 is a specific grade suitable for certain A/C compressors. It's critical to use the correct viscosity oil recommended by the vehicle manufacturer. Using the wrong viscosity can lead to compressor damage.
• 8 oz Cartridge: This is a convenient packaging designed for easy and accurate charging of A/C systems. The cartridge often connects directly to A/C charging equipment.