Carlon B118AR-UPC Single Gang Boxes With Nails Carlon B118AR-UPC Single Gang Boxes With Nails Features: •Designed for use with nonmetallic sheathed cable in accordance with Article 370 of the 1990 National Electrical Code •For Residential, Light Commercial, and Manufactured Housing •Safe non-conductive, non-metallic, PVC •Captive nails •Single gang box •4 knockouts, 2 each end •18 cubic inch box •2-7/8" deep x 2-1/4" wide x 3-3/4" lengt