Sure-Grip concrete liners from Agru America extend the life of tanks, pipes and other structures. Liners are made for new cast-in-place construction, rehabilitation projects and prefabricated elements such as concrete pipes and manholes. V-shaped Ultra Grip anchors are designed for concrete structures subject to high groundwater back pressure. Taller anchors are designed for rehabilitation of structures where a thicker layer of grout is required. Liners are available in a wide variety of resins (HDPE, PP, PVDF, ECTFE), thickness and sheet/roll dimensions. 800/373-2478; www.agruamerica.com.