The Onion Tank manufactured by Dunlop is a water tank that can be folded designed to hold potable and non-potable water like river and rainwater. It features a frame-less design making it suitable for remote places and emergency situations where quick deployment is needed. Its easy set-up feature can be done by a single person and its open design ensures the tank is effortlessly cleaned and reusable for different conditions and fluids. Three configurations are available for this product; namely, open top, roll top and zipper top with a standard capacity that ranges from 1,500 to 20,000 liters.