Secondary or extension telephone socket are used to run additional points of the original master socket. Standard BT type socket with screw type terminals. Flawless Screwless design
Extension BT type socket
Screw terminals
Screwless low profile design with built in gasket
Certified to BS 5733
Minimum mounting box depth: 25mm
Dimensions: 87.5mm x 87.5mm
IP Rating: IP20
15 year warranty