These rectangular tanks are rotation-molded in one seamless piece and have an outside rim flange for strength and ease of handling. Tanks are available in larger capacities and other dimensions; call our Application Specialists for details. High-Density Polyethylene (HDPE) Tanks have very good chemical resistance and a maximum service temperature of 65°C (150°F). HDPE tanks have a hard, smooth surface that is easy to clean. Tanks are FDA compliant. Polypropylene (PP) Tanks have very good chemical resistance, excellent stress crack resistance, and a maximum service temperature of 104°C (220°F). PP tanks feature a hard, smooth surface that is easy to clean and is highly resistant to pickling and plating solutions. Note: Cole-Parmer recommends all rectangular tanks having a dimension of 18" or more, and those used at elevated temperatures or with high specific gravity products, be externally supported. Call our Application Specialists for more information. Easy to handle—outside rim flange for easy gripping Rotation-molded in one seamless piece for easy cleaning. Chemical resistant