EDS 1-Gang Dead-End Cast Device Mounting Box, Number Of Outlet: 1, Material: Copperfree (4/10 Of 1 PCT Maximum) Aluminum, Size: 1 IN, Cable Entry: (1) 1 IN Hub, Knockouts: No, Height: 6.81 IN, Width: 3-1/2 IN, For U-Line Contender 20 Amp Receptacles