USED This is a DeLaval milk pump control box. This box contains a relay, a switch, and a terminal strip. This DeLaval milk pump control is 8 3/8" high, 4 7/8" long, and 7 3/16" wide. The switch is 5/8" long. The four holes on the bottom each have a 3/4" diameter. The original DeLaval part number is unknown. This box is being sold as-is.