This is the Midwest Industrial Tanks Double Wall Used Oil Tank - 500 Gallons. The Midwest Industrial Tanks Waste Oil Tank features a unique double-wall clamshell design that meets SPCC regulations, eliminating the need for a secondary containment tank. The tank is constructed with a 12ga. carbon steel outer tank that fully contains the entire contents of the 10ga. carbon steel inner tank. UL listed.
Onken Double Wall Used Oil Tank - 185 Gallon