DC-903000-1.5, Duracast 3000 Gallon Vertical Plastic Storage Tank | 903000 These plastic vertical tanks are the perfect vessels for storing a wide variety of contents, ranging from destructive chemicals to potable water. Common uses for these 3000 gallon storage tanks include commercial food processing, waste water processing, mining, water reclamation systems and chemical storage. Because these tanks have superior mechanical properties, they will not break down easily from corrosive chemicals or unfavorable conditions. The UV-stabilized resin extends the life of these tanks by slowing down sun damage. The seamless, rust-resistant plastic prevents leaks so that you can enjoy worry-free storage. These tanks feature a 16-inch vented manway fitting that you can access for filling and cleaning. Gallon calibrations are molded into the tanks so that you know when to refill them. This is a 1.5 specific gravity tank.