300 Gallon Elliptical Cradle Tanks can be selected for stationary or transportable (non DOT approved) applications: hauling / storage of fresh potable drinking water, grey water, liquid compatible chemicals and liquid fertilizers. Elliptical tanks lower the load center of gravity, enhancing stability and visibility during transport. All tanks feature a standard collection sump on the bottom for full drain-out These tanks require the bottom to be fully supported with a cradle for use. Horizontal Leg Tanks are manufactured from Food Grade Polyethylene with U.V. inhibitors and designed for containment of liquids up to 1.7 specific gravity. Tank walls are translucent for level viewing and equipped with gallon indicators. Steel cradle, bands and accessories sold separately.