"STOP!! READ THIS. Nothing wrong with this item but... compatible with SUA pipe adapter????? yes, but Screwfix does not supply this. Until I bought this item I wasn't sure what to expect. As I am using this to connect 100mm flexible ducting for my bathroom extraction I realised after purchasing that the adapter is needed. Didn't take back to screwfix, as builder doing the work had requested this item as he likes them. Found the Compatible with SUA pipe adapter elsewhere, but including postage comes to about another £20. So all in all quite expensive compared to other items available on screwfix."
"Bought this to connect to soil pipe & another to extractor though it doesn't come with the adapter And screwfix don't sell it. They gave me phone number of manufacturer (glidevale) who supply a number of wholesalers but wen I visited two in question they don't have the item in stock and need a minimum purchase order to send it out. I then spoke to glidevale again who agree to send to me direct but the item (SUA adapter) is an additional £15 to the original tile vent and a further £15 for delivery. All in all not worth the aggravation so don't bother buying!"