This collapsible water tank is perfect for storing water for outdoor use. You can use the water to wash your cars or to water the garden. The water tank has an air outlet with screw cap on the top and a water inlet / outlet on the side. And a water valve is included. You can also connect a PE tube to the water tank, which makes it convenient to transport the water over a long distance. Thanks to the high-quality PVC, it is UV- and corrosion-resistant for durability.