HomeFlex 11-00725 3/4-Inch x 25-Feet Corrugated Tubing, Stainless Steel Product Description HOME-FLEX Corrugated Stainless Steel Tubing or CSST is great for installation of gas appliances. CSST easily snakes into attic and basements areas, around corners and bends and through walls. Much easier to work than steel pipe, uses fewer fittings and weighs a lot less too. Certification through manufacturer is recommended before installing CSST. From the Manufacturer HOME-FLEX Corrugated Stainless Steel Tubing or CSST is great for installation of gas appliances. CSST easily snakes into attic and basements areas, around corners and bends, and through walls. Much easier to work than steel pipe, uses fewer fittings, and weighs a lot less too. Certification through manufacturer is recommended before installing CSST. Features 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 USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.