The Dansk Washer Fluid Reservoir - 1698600200 is a replacement part for a vehicle's washer fluid system. It is a plastic container that holds the washer fluid and is connected to the washer pump. The reservoir has a capacity of approximately 1 gallon and is designed to fit specific makes and models of vehicles. It is a durable and reliable component that ensures the proper functioning of the washer system, allowing for clear and safe visibility while driving.