JR Products Polar White 2-27/32"RO Square Cable Hatch Access Door S-27-10-A 19-0212

2-27/32 Inch Cutout Dimension, 4-5/16 Inch Height x 3-7/8 Inch Width x 1-3/4 Inch Collar Depth. It accepts 30A cord. This hatch is made of durable polypropylene for lasting use. No metal parts to rust or corrode.