Hoffman EP6050AL Panel, COMLINE, Fits 600x500mm, AluminumProvides a mounting surface in the back of the COMLINE¢ Enclosure for surface mount components. Mill finish aluminum. Product Specifications BRANDHoffman® WIDTH INCHES426 HEIGHT INCHES526 MANUFACTURERS PART NUMBEREP6050AL CONSTRUCTIONAluminum DESCRIPTIONMounting Panel A X B X C MM-- HEIGHT MM20.71 A X B X C INCHES-- FITS600x500mm WIDTH MM16.78 FITS A X B600 x 500