201 4" Square Extension Ring, 1-1/2" Deep, Drawn, Metallic

4" Square, Extension Ring, Drawn, Metallic. Depth: 1-1/2". Side Knockouts: (12) 1/2". Cubic Inches: 22.5"

Extension rings provide additional cubic capicity. May be used an an outlet box for surface conduit. Constructed from 1/16 in. pre-galvanized steel.

Product Specification :

• Combination screw heads allow quick installation
• Drawn construction
• Twelve 1/2 in. knockouts
• UL Listed
• 22.5 cu. in. capacity