i think screwfix may do these
check out ref no d48234
http://www.screwfix.com/app/sfd/cat/...63050&id=48234

looks like they put the wrong picture on this product

things i do for you people......you'll be asking for me to come round and
fix it next......

well it all depends upon whether my mum will let me out or not after my
teatime.....