25mm Flexi Conduit (50m). Use to insulate pipes to prevent heat loss where not needed. These rolls of flexi split conduit come in 50m rolls and are used in two main applications. Firstly, they are used for the insulation of pipework in areas where heat output is not required. An example of this may be where pipework passes beneath kitchen units, or passes through areas on a transit run that do not require heating. The other main application is to help to reduce stress on pipework where it runs across building expansion joints or areas of possible movement. The product is made from a flexible high-grade plastic, and is simply clipped around the pipe. It suits both 16mm and 17mm pipework.