Belkin Broadband In-Line Filter
Maximise the performance of DSL and HPN services with the Belkin F3X1387uk Broadband In-Line Filter.
Install this DSL filter between analog devices like your telephone or modem and your telephone line to prevent interference between such devices and your DSL service operating on the same line. This DSL filter is compatible with BT-M/RJ11-F+BT-F connectors.
For added peace of mind, the Belkin F3X1387uk Broadband In-Line Filter comes with a lifetime guarantee.