DC-900165-1.9, Duracast 165 Gallon Heavy Duty Vertical Tank | 900165 Strong, useful and easy-to-clean, Duracast’s 165 gallon vertical tanks are your best solution for worry-free storage. These tanks will not rust or deteriorate, so you can store dangerous chemicals without leaking concerns. The resin is UV stabilized, which means the tanks won’t be affected by environmental factors like the sun. Duracast tanks are also made with resin approved by the FDA, so you can safely store potable water. This vertical tank features measurement graduations that are molded onto the tank and an eight-inch vented manway fitting. Take your pick from white, green or black options. The natural white of the polyethylene is translucent, so you can easily see how full the tanks are. Black and green tanks are best for preventing the growth of algae.