TayMac MM410CA Weatherproof Nonmetallic Standard Depth In-Use Device Cover, 16-in-1 Configurations, Single Gang, Round Box Adapter Plate, Horizontal/Vertical, Clear Horizontal/vertical device mount Patented quick-fit keyhole mounting system allows cover installation under a minute Lockable tab Single gang; gfci plus adapter plates provide 16 in 1 possible configuration types; one round box adapter plate included