GFI Cover Plate, Shape Rectangular, Number of Gangs 1, Length 4 5/16 in, Width 3 5/16 in, Material Aluminum, Finish Brushed, For Use With OmniBox Series Floor Boxes, Standards cULus Listed Metallic Outlet Boxes: File E2961 Guide QCIT. Meets Article 314.27(C) of NEC.