Capacity: Maximum 7.5L/2 Gallon. Dimension: 16.1' x12.5' x3.3'(for single one) Material: Made of high-quality PE. Durable, impact-resistant, with lighter weight and stronger security. Seamless barrel body, will not leak. Design highlights: Two 2-gallon water containers can be combined together. More convenient and easy to handle. Saves space and offers a neat appearance. With built-in water pipe. Can be easily inserted into the tank opening for use and saves space. Designed with anti-backflow holes to prevent negative pressure backflow, making operation more time and effort saving. Part number: TK-Watertank001-PP Fit type: Universal