657 Bulkheads B Z390-05 D E FINISH A Z389-(Finish)† B Z390-(Finish)† C Z394-56 F Z397-07 Z395-05 Z396-56 MODEL C CAST ALUMINUM BACKPLATE TOP TO OUTLET N/A N/A N/A N/A N/A N/A 10" N/A 5" 4.5" 6.5" 5.75" CONFIGURATION HEIGHT WIDTH 04, 05, 07 Lg. Flush/Wall Mount 4.75" 10.6" 05, 07 Sm. Flush/Wall Mount 4.5" 8.5" Z394-(Finish) 04, 05, 07, 56 Sm. Flush/Wall Mount 4.5" 8" D Z395-(Finish) 1 04, 05, 07, 56 Lg. Flush/Wall Mount 5.