52 Carlon® Curved lid junction box assembly in gray color, has du73le PVC construction. It is suitable for 24-Inch Dia concrete pier. It measures 12-Inch x 12-Inch x 4-Inch. Surface mountable junction assembly offers splicing space for options like zone lighting or to minimize the number of home runs. Divider helps you separate high and low-voltage. Lids offer locations to mount weather-proof covers. Junction box assembly is UL listed and CSA certified.