Multitrack Non Woven Geotextile Roll Mini Pack 4.5m x 10m is for separation and filtration in a range of groundworks applications including trench drains and the 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 the intermixing of dissimilar soil layers. It can also be used for filtration to allow the flow of water while preventing the passage of soil.