Carlon E-18-4 Outlet Box, Old Work, 1 Gang, 3-25/32-Inch Length by 2-7/32-Inch Width by 3-Inch Depth, Blue Carlon non-metallic boxes feature PVC construction for easier installation Designed and listed for use with non-metallic sheathed cable in accordance with Article 314 of the National Electrical Code All PVC boxes are permissible for use with 90 Degree C connectors Blue Old work