Multitrack 700 Non Woven Geotextile Roll 4.5m x 100m is ideal for separation and filtration in a range of groundworks applications including trench drains and wrapping of perforated drainage pipes. It is ideal for separating and strengthening the layer under access roads and areas of hard-standing, as a filter surround for trench drains and for separation to stop intermixing of dissimilar soil layers. It can also be used for filtration to allow the flow of water while preventing the passage of soil.