For sale a Mark Grant Tube Distinctions mains filter. http://tubedistinctions.co.uk/mains-filters/
This has one standard UK socket and one Schuko socket (lead supplied). I bought this a couple of weeks ago from Josie Black Adder and found it brought some improvement with my digital equipment but a recent rearrangement of the living room means I can't fit it in to the system, i.e. hide it away. Some folk here really rate this filter reckoning it also works with analogue equipment and Mark Grant has a good reputation for knowing what he is doing. Read the link above for more information.
Current new price is £355, I paid £200 plus postage which should be less than £10 UK mainland so that's what I would like please. As you can see from the images condition is excellent.