JR Products S7132-A Polar White Medium 30/50 Amp Key Lock Electric Cable Hatch Accepts both 30 and 50 Amp cord UV and impact resistant, resists road salts and acids Open back for a variety of uses Cutout Dimensions: 4-3/4" H x 5-7/8" W; Outside Dimensions: 6-1/2" H x 7-5/8" W Collar Depth: 1-1/8"