The JR Products Small Electrical Cable Hatch is constructed of durable plastic that is UV and impact resistant for a long life. May be painted to match any exterior with no prep. Accepts both 30 and 50 Amp cord. Cutout Dimensions: 4-3/4" H x 4-1/4" W. Outside Dimensions: 6-1/2" H x 6" W. Collar Depth: 3/8".