4 in. Square Extension Ring Drawn 1-1/2 in. Deep with Twelve 1/2 in. KO's
Extension rings provide additional cubic capacity. May be used 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
Mod # 201 CU.IN.22.5, 12,1/2"
Mod # 203 CU.IN. 22.5 , 8,1/2" & 4,3/4"