C-Line BackBox Back Box Rear Cover for Recessed Sockets Camper Fits CBE x3 CL1.1

This is used to provide protection to wires and cables that are wired into the rear of C-Line and CBE sockets. C-Line round back-box for recessed sockets. These fit all C-Line sockets, switches, fused spurs and they work with all surrounds within the C-Line range.

eBay