4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep with Twelve 1/2 in. KO's
Extension rings provide additional cubic capicity.
May be used an an outlet box for surface conduit.
Constructed from 1/16 in. pre-galvanized steel.
Combination screw heads allow quick installation
Drawn construction
Twelve 1/2 in. knockouts
UL Listed
22.5 cu. in. capacity. This item has been restricted from sale in the following state(s): []