Kevin and guys appreciate the feedback.

Most of the UK suppliers don't actually have stock, even though the items are on their sites, so hopes raised and then cut.

Currently a friend who travels to the US as a pilot has worked a solution and I hope to have 50 or so of these filters with me in the UK by the end of the month.

Ongoing it would be good to see what can be done, and who can ship direct to me, so please advise on progress.

Cheers for the help, always top class ;-)

marcs