Knightsbridge Telephone Master Outlet - Gunmetal FP7300GM

The master socket contain a surge arrestor and an R/C circuit filter these are used by your service provider to get a fixed value resistance when they run line checks. Standard BT type socket with screw type terminals. Flat Plate low profile design

• Master BT type socket
• Screw terminals
• Ultralow profile design with built in gasket
• Certified to BS 5733
• Minimum mounting box depth: 25mm