Model # 73151 1/2 3/4
The 4-11/16 in. square Box Extension Ring is used to extend a receptacle or a switch that are flush mount in wall surfaces such as tile, paneling or drywall. Made of durable pre-galvanized steel, the extension ring is for use with conduit, the extension ring dimensions are 4.7 in. x 4.7 in x 1.5 in.