Sure-Grip concrete liners from Agru America extend the life of tanks, pipes and other structures by combining the flexibility and chemical resistance of thermoplastics with the strength of concrete. They are ideal for new cast-in-place construction, rehabilitation projects and prefabricated elements such as concrete pipes and manholes. The V-shaped 13 mm tall Ultra Grip anchors are designed for concrete structures subject to high groundwater back pressure, with 19 mm tall anchors designed for rehabilitation of structures where a thicker layer of grout is required. They are available in a wide variety of resins (including HDPE, PP, PVDF and ECTFE), thicknesses and sheet/roll dimensions. An anti-skid surface is available for floors, a coextruded signal layer for damage detection and a self-cleaning surface for reduced sedimentation in pipe inverts. 800/373-2478; www.agruamerica.com.