Our used steel tanks for sale meet strict industry standards, OSHA, Cal/OSHA and EPA guidelines. We offer various models of used frac tanks for sale with features such as side or front stairways, outer foam walls, and internal manifolds. Each model specializes in holding hazardous as well as non-hazardous liquid and solid storage containment like diesel oil, glycol, fresh water, chemicals, and more. They can be used in applications for storing liquids in oil and gas plants, construction sites, manufacturing, agriculture, waste management, environmental remediation and many other industries. Our 21,000-gallon (500 BBL) capacity tanks are available across the country from coast to coast.