Genuine OEM Volkswagen Air Conditioning Dryer, part number 2E1820193A. This critical component is responsible for removing moisture and contaminants from the refrigerant within the vehicle's air conditioning system. It is typically located between the condenser and the expansion valve. Weighing 0.405 kg with dimensions of 0.3m x 0.052m x 0.042m. Using a genuine OEM A/C dryer ensures optimal system performance, prevents corrosion, and extends the lifespan of other expensive A/C components by maintaining refrigerant purity.