Premium Quality ADSL Filter (Excelsus Z-350UK)

Excelsus Z-Blocker Z-350UK ADSL filter as supplied by many ISP's

An ADSL filter that simply plugs into a phone socket and filters telephones, fax machines, answering machines, Sky boxes and other telephony equipment from interference on ADSL lines.

Supplied with a short fly lead in order to connect the filter to the telephone wall socket. Filtered BT socket for analogue devices & unfiltered RJ11 socket for ADSL modems or routers. Note you require a filter at EVERY socket that will have an analogue device plugged in.