An ADSL Microfilter with fly-lead; if you have an ADSL line you will need one of these on each telephone point as they filter out the digital signal removing interference from the line. These are standard microfilters compatible with ANY UK ADSL telephone line.These higher quality filters are ideal for your telephones if your in a poor signal area.These are compliant with SIN346 v2.2, they work with ADSL and ADSL2
