RE: Free Jet A
That how I used to get my fuel in the UK for many years. You certainly don't need any filter contraptions, either. Just let the fuel settle in transparent plastic containers such as white spirit bottles, after a few days draw off the fuel by syphon from above any water and or dirt/ debris and transfer it to you fuel container. Do it this way and you wont have to change your aircraft filters either because the fuel is totally free from water and debris.
Regards,
David Gladwin.