[ftp]

The porcupine on a swivel looks quite interesting for cladding and conservatories.
Don't think much of the rest though especially the overpriced upvc cleaner (£1 in wilkos).

[jouk45]

aparantly you cant use the porcupine on tinted, or glass with protective coatings on them, as it scratches it, thats what i heard,

[ftp]

I forgot the link  :

http://www.hgpromotions.com/?page=products&cid=6

[JSMC]

done a few roofs and it's a pain having too keep adjusting brush head to get to awkward bits. A swivel  head would be good for on wfp