DC-902500-1.9, Duracast 2500 Gallon Heavy Duty Vertical Tank | 902500 When it comes to storing hazardous chemicals, you do not want to take your chances with flimsy containers. Instead, store contents in Duracast’s heavy duty vertical tanks. These tanks are dependable and manufactured to the highest standards in the industry. The seamless structure improves the overall durability of these tanks and leaves no room for leaks. The polyethylene resin is made with UV stabilizers to slow down sun damage and extend the life of the tanks. Because these tanks combat chemical attacks, they are well suited to store a variety of contents including industrial and agricultural chemicals, liquid fertilizers, liquid feed, many acids and vegetable oils. This is a 1.9 specific gravity tank.