Pattress Socket Box Standard white bakelite box For use with double switches or sockets 2 Gang Size: 47mm Powermaster 2 Gang 47Mm Surface Double Pattress Socket Box | 1523-16 The Powermaster Pattress Box - 47mm 2 Gang is a standard white bakelite box. It is surface mounted. It is for use with double sockets or switches such as a 2 gang cooker switch, as it is the medium depth surface mounted box. The pack contains one 2 gang pattress box and has hassle free, easy to open polyurethane packaging. It requires standard installation tools and should only be installed by a competent, qualified person. It conforms to BS standard 5733.