Hi Tony
i use the unger poles ranging from 6ft to 24ft
all you need are the pole (obvious) i use an angle adapter instead of a
gooseneck and just connect the brush to that ,you can then have the
hose running outside the pole or inside it,s up to you .
I bought mine form cleantech
www.cleantech.co.uk and they predrilled the final
section for the hose to come through also put a piece where the hole is for the
hose to strenghen it.
The pole are light but with the 24ft one it is a bit whippy but get used to it.
Sections can be added to the pole to make it longer and replacment clamps and collers are couple of pound ...
hope that helps...
darren