Electrical Cord Hatch; Electrical Hatch; 4-3/4 Inch Height x 4-1/4 Inch Width Cutout Dimension; 6-1/2 Inch Height x 6 Inch Width Outside Dimension x 3/8 Inch Collar Depth; Accepts Up To 30 Amp/ 50 Amp Cords; Polar White; Thumb Lock; UV And Impact Resistant; B&B Cross Reference MGD32-A.