BG Nexus Metal Polished Chrome 20A DP Single Switch NPC31 with 25mm Steel Back BoxBG Nexus Metal Polished Chrome 20A DP Single Switch NPC31 with 25mm Steel Back Box This 20A double pole switch with indicator from British General has been designed for the connection of refrigerators water heaters, central heating boilers and many other fixed appliances. This switch has a premium polished chrome finish, a sleek and slim profile and softly rounded edges to add a touch of luxury to your decor. The 25mm steel back box is designed for