The Flexipipe 110mm is a black polypropylene roof vent flexi designed and manufactured in the United Kingdom by Ulti-Mate. It is a lightweight and smooth finished pipe suitable for use as a soil vent pipe or extractor fan in roof spaces. With a fire rating of A1 and a shape of a circle, this flexi pipe is ideal for fastening applications and comes in a pack of 1. Its 110mm diameter makes it suitable for various ventilation uses.