Argie,
Take a look at this link -
http://www.britishspares.com/16.php
They normally come in kit form, with everything you need to connect them up, uncluding the hose ,specific to your year/model.
I would suggest most Brit spares suppliers would have similar kits.
I fitted one to my 77 in 40 minutes, and no hassles.
Note that these things won't cure a partially or fully blocked sludge trap....but can drastically reduce the blockage of a new one.
Hope this helps
