"This is for the Versatile roof Tile Vent Flexipipe pipe adaptor which has a 110mm pipe connection. It clips on the roof tile vent as expected. But like another review mentioned, extractor fans are Not 110mm and don't have 110mm flexipipe. This creates a problem which requires buying yet another item. Why not sell a 100mm version of this roof tile pipe adaptor? And maybe a 125 or 150mm for the 5" and 6" fans."
"easily fitted, it just clips on. only problem with it is that it is for a 110mm pipes. most extractor fans I have seen and the one I used it for have 100mm pipes. I got round this by fitting a 110mm to 100mm adaptor pipes. would be nice if it came with 100mm outlet as well."