DC-908000-1.9, Duracast 8000 Gallon Heavy Duty Vertical Tank | 908000 Achieve peace of mind and enjoy worry-free storage with these heavy duty vertical tanks. Manufactured to provide long-lasting quality, these tanks are your No. 1 storage solution for a variety of liquids. Some of the more common contents people store in these tanks include vegetable oils, industrial chemicals, liquid fertilizer, liquid feed and DEF. These tanks are made with UV stabilized polyethylene resin so that you can keep them outdoors. Impact-resistant, these heavy duty tanks can withstand environmental stress well without cracking. A 16-inch vented lid is on top of each of these tanks and provides easy access for cleaning and filling. Gallon calibrations allow you to measure content levels. This is a 1.9 specific gravity tank.