Abstract: A catch basin for automotive fluids, such as oil, adapted for use beneath a mechanic's catwalk which is itself extended beneath an automobile undergoing maintenance or repair operations, is disclosed wherein the catch basin comprises a generally rectangular, planar body portion formed of two dihedrally angled planar body halves and supports for supporting the body portion beneath the catwalk. The basin may be tilted toward a downstream end, at which is located a drain hole and a selectively removable plug. The catch basin supports may be supported from the catwalk or may themselves support the catwalk. The basin may also be provided with a bay adapted to receive and support a plurality of oil filters which are to be drained.