Well now, it seems as if this might be a popular thread!
A short while ago, Butch posted a very clearly explained and illustrated thread re: converting the Lister "snake" fuel filter to a cartridge filter while retaining the original housing. I just tried it step by step, it was easily done with hand tools, looks and works great.
Thanks for that one, and am looking forward to more. You might even publish a how-to book!
In appreciation,
Hugh