Hoffman EP5050AL Panel, COMLINE, Fits 500x500mm, AluminumProvides a mounting surface in the back of the COMLINE¢ Enclosure for surface mount components. Mill finish aluminum. Product Specifications BRANDHoffman® WIDTH INCHES426 HEIGHT INCHES426 MANUFACTURERS PART NUMBEREP5050AL CONSTRUCTIONAluminum DESCRIPTIONMounting Panel A X B X C MM-- HEIGHT MM16.78 A X B X C INCHES-- FITS500x500mm WIDTH MM16.78 FITS A X B500 x 500