ADSL Micro Filter for BT Broadband RJ11 ADSL Router/Modem - QUAD PACK (4)

I used these to replace a set of existing micro filters that appeared to be failing and much rather prefer these ones which plug into the telephone socket without any silly cable trailing out. A telephone engineer mentioned that micro filters are subject to quite high voltages of nearly 50V so can be prone to failure and whilst you can buy more expensive models, it's better to try a cheap alternative to eliminate a filter being the problem. Since I have used these, my ADSL broadband has become more stable with no dropouts after using the telephone. One other thing to note, you don't actually need to use a micro filter on a socket that has an ADSL modem router connected *only*. The filter is actually for the telephone only so if you have both a telephone and ADSL modem router connected to one socket, a micro filter is required. If you only have an ADSL modem router connected to a socket, and your telephone is connected to another socket, you don't need a micro filter on the ADSL socket but you will need one on the telephone.

Great value for individually wrapped filters. Seen similar in stores but costing much much more!

depending on how much traffic is going threw your internet i would recomend having these on hand as its the most likely culprit of a dodgy internet connection not the router or phoneline itself try this then the phoneline

Bought in error but good quality

works a treat

BT Engineer threw this in the bin with laugh and did put my old filter back on. Silly me...

Great value quick service

Sorted out my bad internet connection.