Carlon 4-1/8 in. Rectangle Old Work 1 Gang Outlet Box - Volume 20 Cubic Inches, Length 4-1/8 Inches, Width 2-15/16 Inches, Depth 3-5/8 Inches, Color Blue, Material PVC, Mounting Means Mounting Ears and Swing Bracket. 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.