Carlon B114RR-UPC Single Gang Old Work BoxCarlon B114RR-UPC Single Gang Old Work Box Features:;Designed for use with nonmetallic sheathed cable in accordance with Article 30 of the 1990 National Electrical Code;For Residential, Light Commercial, and Manufactured Housing;Safe non-conductive, non-metallic, PVC;With zip mount retainers;Safe, non-conductive, non-metallic;For old construction;14 cubic inch box;2-3/4" deep x 2-1/4" wide x 4-1/8" long