A Cistern Car is a type of railway car designed to transport liquids, typically water or other bulk liquids. These cars are equipped with a large tank, allowing them to carry significant volumes. They are commonly used in industries such as agriculture, construction, and food processing. Cistern cars are often made of steel or aluminum to ensure durability and prevent leaks. They can be found in various sizes, depending on the specific needs of the cargo. Their design allows for easy loading and unloading, making them efficient for transporting liquids over long distances.