Drain pan for radiators and cooling systems

A drain receptacle for receiving effluent from a vehicle, comprising a pan having a base panel, a plurality of sidewalls extending upwardly from the perimeter of said base panel and formed integrally therewith, said side walls extending continuously about said base panel and defining therewith an upwardly opening coffer, said base panel including shoulder portions extending upwardly into said coffer and disposed in longitudinal fashion along said side wall, lattice means disposed in said coffer for attenuating and arresting wave motion in and spattering from liquid contained in said coffer, said lattice means impinging on and supported by said shoulder portions, wherein said base panel includes a plurality of corners, and a plurality of upwardly extending concave wall members, each disposed at one of said corners and extending between the sidewalls converging thereat.