This is due to the better filters fitted to these newer units. This is due to the better filters that are fitted to these newer units. Simply insert Unstripped conductors and Close the Clip to connect.
BT Openreach NTE5C MK2 Master Phone Socket MK4 Faceplate Filter + Box TRACKED48
BT Openreach NTE5C MK2 Master Phone Socket with MK4 Faceplate Filter TRACKED48
BT Openreach NTE5c MK2 Master Socket + MK4 VDSL/ADSL Faceplate New
DAVOX BT Openreach NTE5C MK2 Master Telephone Socket + MK4 Faceplate + Back Box
3 x 2020 BT Openreach NTE5c MK2 Telephone Socket Faceplate
BT Openreach NTE5C MK2 Master Telephone Socket + MK4 Faceplate + Back Box - Com
