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Tensar NX750-FG and NX850-FG geogrids Tensar´s FilterGrid™ solutions combine the superior performance of Tensar´s InterAx™ geogrid technology with the added assurance of a nonwoven geotextile to stabilize paved and unpaved roadways, airfields, crane pads, and other working surfaces. by providing confinement, separation, and filtration. While Tensar geogrids frequently provide adequate confinement of the fill to achieve both filtration and separation, specifiers may sometimes recommend a geotextile in conjunction with the geogrid, particularly when low plasticity silts and clays present additional challenges. - Multi-functional: provides aggregate stabilization, filtration, and separation - Efficient installation: deploys as a single layer - saving time and labor costs - Economical: optimizes the structural thickness to save time and money - Eco-friendly: a permanent, safe alternative to the use of chemical stabilization agents