Abstract: A splash bar for use in crossflow cooling tower fill assemblies. The splash bar has (1) a substantially horizontal upper surface, (2) two downwardly extending side surfaces terminating at their lower edges in substantially horizontal inwardly directed flanges, and (3) at least one downwardly extending rib intermediate the side surfaces and terminating at its lower edge in a substantially horizontal flange. All of the flanges are in the same substantially horizontal plane, and all are spaced from one another to facilitate extrusion of the splash bar and to prevent accumulation of water and debris in the splash bar. The upper surface may be perforate or imperforate.