Used Fluid DrainLincoln Used Fluid Drain 20 gallon Model 3618 features a stable, low profile tank design and large 18" offset bowl with metal filter screen. Bowl height is easily adjustable by loosening and tightening a friction style lock ring, and a special telescoping tube design eliminates the need to extend the bowl during evacuation. Pump assisted used fluid collection and transfer systems are ideal for large multibay shops and applications or environments