DC-900165-1.2, Duracast 165 Gallon Plastic Water Tank | 900165 Fulfill your temporary water storage needs with a Duracast plastic water tank. These tanks are constructed with resins that are FDA approved, which makes them safe to store potable water. Besides safe drinking water, you can use a 165 gallon plastic water tank as an emergency solution in case of drought or other natural disasters; an irrigation source for gardening; and to collect rainwater. Designed for long-lasting quality, you will not have to worry about the tanks degrading and they will continue to perform well under environmental stress. Tanks come in green, black and natural white. If storing water outside, use the green or black colored tanks to slow down the growth of algae.