The SMB-1, 2, 3 and 4 surface mount boxes hold one, two, three or four DecoraÃ‚Â®-style products, including RDL remote controls and connector plates. Knockouts are provided for fastening standard metric or North American conduits to the rear of the box and to either the upper or lower surface, depending on the orientation of the box when it is mounted. The sides and top or bottom of the box maintain a smooth surface for a finished appearance superior to that of a standard electrical box. Model numbers with a suffix "W" are white; with a suffix "G" are gray to complement RDL stainless steel remote controls and plates. All SMB- boxes are constructed from welded steel with a high quality powder coated finish.