Cover Expands: 1-1/2 to 2-3/4 in. (fits most 16 - 14 gauge cords) Mounts horizontal/vertical + 24-in-1 device configurations Includes adapters, mounting screws (#6-32), bug guard, & gasket 24-in-1 configurations: Duplex, GFCI/Decorator, Blank/Toggle/Round for sizes 1-1/8 in, 1-1/4 in, 1-3/8 in, 1-9/16 in, 1-5/8 in, 1-11/16 in and 2-1/8 in Low profile design is a great alternative to standard 3 in. depth in-use covers Quick-fit adapter mounting system allows cover installation under a minute Device protection with the walls locking into base to keep elements out when not in-use Extra duty rated NEMA 3R compliant