HomeFlex 11-00725 3/4-Inch x 25-Feet Corrugated  Tubing, Stainless Steel Saves time - 60 percent time savings vs. steel pipe fitting Cleaner and easier to handle than black steel pipe Bends around corners eliminating need for additional joints and fittings Use coordinating CSST fittings Great for seismic areas - ridged pipe often leaks after even small tremors