The 37WFR5 is a 30 gallon fiber Drum of Teal-Sorb FR. Teal-Sorb FR is a fire retardant engineered to absorb flammable or combustible spills. Unlike clay, cellulose, polypropylene, and other agricultural based solutions such as Oil-Dri, Teal-Sorb is designed to bring virtually any liquid into its structure and 'Lock' it away. with an average weight of 6 pounds per cubic foot, Teal-Sorb is capable of absorbing up to 7 times its own weight in liquid. The liquid is then captured leaving behind a residue free surface, and a manageable clump of absorbed material.