Carlon 3-3/4 in. Rectangle New Work 1 Gang Outlet Box - Volume 22 Cubic Inches, Length 3-3/4 Inches, Width 2-1/4 Inches, Depth 3-1/2 Inches, Color Blue, Material PVC, Mounting Means Nails. PVC construction for easier installation, greater performance and lower installation cost. Designed and listed for use with non-metallic sheathed cable in accordance with Article 314 of the National Electrical Code.