DC-900330-1.5, Duracast 330 Gallon Plastic Storage Tank | 900330 These sturdy storage tanks are rotationally molded to provide worry-free storage for a variety of contents including industrial chemicals, fertilizers, many types of acids and potable water. The one-piece design prevents the contents from leaking. The durable polyethylene material can handle aggressive contents and environmental forces without breaking down. There are gallon calibrations molded into each one of these tanks, which allow you to measure tank contents quickly and accurately. The 8-inch vented lid provides enough room to fill and drain tanks without spilling. It also allows you to clean the tank quickly in between uses. Choose from black, green and white tanks. These tanks can be used both indoors and outdoors.