Flat Plate Telephone master socket -brushed brass

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