JR Products Black 5-7/8"RO Lockable Cable Hatch Access Door w/Key Lock E7133-A 19-1621

4-3/4 Inch Height x 5-7/8 Inch Width Cutout Dimension, 6-1/2 Inch Height x 7-5/8 Inch Width x 1-1/8 Inch Collar Depth. It accepts up to 30A/ 50A cords.