U. S. Pipe now manufactures TR-XTREME® Ductile Iron Pipe to complement other offerings in our product line to introduce Piping Systems for Unstable Soils. TR-XTREME, TR FLEX® Telescoping Sleeve and Fittings, XTRA®-FLEX Couplings and Fittings, and TR TELE FLEX® Couplings combine to create an entire system capable of withstanding extreme seismic events. TR-XTREME has been tested and determined to survive over 99% of liquefaction-induced lateral ground strains measured by high-resolution LiDAR after each of four major earthquakes during the recent Canterbury Earthquake Sequence (CES) in Christchurch, New Zealand. To learn more about TR-XTREME and its capabilities in Piping Systems for Unstable Soils.