Arlington BE1-2 Electrical Outlet Box Extender 1-Gang 2-Pack
Arlington BE1-2CS Single Gang Box Extender, 2-pack.  Use Arlington's UL and CSA listed, non-conductive Box Extenders, BE1-2CS, to extend set back electrical boxes up to 1-1/2 inch.  Level and support wiring devices to bring flush with wall surface, trimmable. 2 per package