DC-901750-1.9, Duracast 1700 Gallon Heavy Duty Vertical Tank | 901750 Relying on flimsy containers to store corrosive contents is not smart and could be dangerous. Instead, store hazardous chemicals and other damaging contents in Duracast’s heavy duty vertical storage tanks. These plastic storage tanks are different than many other alternatives because they are stronger and better quality. Rotationally molded to the highest standards in the industry, you can rely on these tanks to keep your contents stored without cracking or leaking. The polyethylene resin is UV stabilized to provide years of high-performance use. Their high resistance to chemical and physical attack keeps these tanks from breaking down in stressful conditions. People can use these tanks to store chemicals, vegetable oils, biodiesel, DEF, liquid feed and liquid fertilizer. This is a 1.9 specific gravity tank.