Appleton Masonry Box, 4-Gang, 3-1/2" Deep, 1/2 " & 3/4" KOs, Metallic

4-Gang, Non-Gangable, Masonry Box, Welded, Metallic. Depth: 3-1/2". Side Knockouts:(20) 1/2" & 3/4" Concentric KOs. Bottom Knockouts: (4) 1/2" & 3/4" Concentric KOs. Cubic Inches: 15.5".