Extra Duty In-Use Cover, Clear/Gray Color/Finish, For Use With 18IN1 Extra Duty Box, Gasket and Mounting Hardware Included, Polycarbonate Material, 1 Gang, 10 PK Package Quantity, 1 Gang Can Be Used Horizontally or Vertically;Easy to Install;Lockable;Patented Multi-Configuration Design, Culus Listed File No. E362580;Ul Extra Duty Compliant, 3-1/4 In Width