Portable upright drains are commonly used for collecting fluids under lift supported vehicles. A combination of two ball-bearing swivel casters and two fixed-axle wheels makes them portable and easy to maneuver. Pump-assist models feature a male camlock connector extending from the top of the reservoir for attaching to a fluid evacuation pump or other fluid transfer system . Model 3626 has a large 26 gallon (98 liter) reservoir molded from high-strength polyethylene for lighter weight, reduced corrosion and lower risk of damage to surrounding vehicles . Large recesses for tool and filter storage are molded into the top and drain directly into the reservoir. The large 18-inch (457 mm) offset bowl includes a removable metal filter screen and secondary debris screen.