20 GALLON CAPACITY: This drain tank has a 20 gallon capacity and can collect used oil from 8-10 vehicles. Ideal for draining, transferring and emptying oil and liquids. Garvee 8 Gallon Waste Oil Drain Tank, Portable Oil Drain Container, Air Operated Drainer, Fluid Fuel Transfer Drainage, Adjustable Funnel Height with Wheel &15" Premium Bowl and a Toolbox.