A portable multi-purpose water tank designed to meet the demands of outdoor activities and overlanding with high efficiency. With a 24-liter capacity, it provides a practical water supply for daily use such as drinking, hand washing, cleaning equipment, or showering during camping trips. Constructed from food-grade polyethylene (PE), it ensures safe, odor-free water storage without contamination. The outer body is built with a durable and rugged structure, making it suitable for harsh environments and off-road conditions while maintaining long-term reliability. The tank features an integrated pumping system with a water outlet that connects to a hose and spray nozzle, allowing smooth and controlled water flow. It also includes well-sealed filling and drainage ports to prevent leakage and ensure ease of use. With approximate dimensions of 565 × 275 × 268 mm, the compact design makes it ideal for installation in most vehicles without taking up excessive space. Built-in handles enhance portability and convenience during transport and setup. This product is a practical and professional solution for camping, off-road adventures, and any outdoor use that requires a reliable and easy-to-use water source.