ESR 2 Gang 35mm Single Flush Recessed Galvanised Metal Back Box

The FSB352 Double 35mm Metal Box by ESR is ideal for flush mounting switches and sockets in domestic and commercial applications. These are mainly used behind face plates and allow the face plate to be screwed and secured flush to the wall. 2 Gang - For Double Switches and Sockets. 35mm Depth. Comes with Brass Earth Terminal. Galvanised Steel Finish. 1 Adjustable and 3 fixed lugs. Knockouts - 2 to each side, 4 to the back, 4 to the top and bottom (total of 16 knockouts) 133mm x 73mm cutout required. CE and Compliant to BS 4662 If you require a back box for drylining or plasterboard, please see our drylining range.