WPG2. WP cover flanged inlets/outlets 2.32 . Unbreakable glass-filled polycarbonate construction to withstand years of job site abuse and harsh environmental exposure. . Stainless steel mounting screws also resist corrosion. . Covers comply with 2005 NEC section 406.8(A) and 406.8(B)(2). . Molded-in label area (2.8 sq. In.) for pre-printed or handwritten labels for identification of circuits, ratings and other application data. . .