These heavy-duty, durable, general-purpose hard-plastic tanks are extremely long-lived and boast tremendous chemical resistance, with flat bottoms for providing a level, stable place for storing and working with chemicals. These tanks feature low extractables, excellent chemical resistance, and inherent UV resistance for protecting light-sensitive solutions. Additional features such as moulded-in graduations and external faucets can be found in certain models. Self-supporting seamless walls are resistant to rust, corrosion, and dents.