Clamp Back, Malleable Iron, Size 3
Back Spacer, Iron, Finish Electroplated, Overall Length 6 23/32 in, Overall Width 2 5/8 in, Overall Height 27/32 in, Compatible Conduit Trade Size 3 in, Compatible Conduit Type Rigid, RMC, Compatible Nominal Conduit/Pipe Size 3 in, Create the Space Between the Conduit and Mounting Space, Elongated Bolt Holes, Wet Location, For Use With Conduit, Mounting Type Screw On, UL Listed, Clamp Back.