Corrugated Stainless Steel Tubing

Corrugated Stainless Steel Tubing (CSST) is a flexible, stainless steel pipe used to distribute natural gas within residential, commercial and industrial structures. Coated with a yellow exterior plastic coating, CSST is usually routed beneath floors, inside interior walls and in attic spaces. 

While this type of pipe is safe, it is strongly recommended that you determine if the CSST system is properly bonded and grounded. Nearby lightning strikes can result in an electrical surge and can potentially puncture a hole in the CSST. Proper bonding and grounding will reduce the risk of damage and fire from a lightning strike.  

If you are unsure as to whether your home or business has CSST or whether it has been properly bonded and grounded, contact a licensed electrician to arrange for a professional inspection. 
*NMGC doesn’t provide inspection service for CSST installations. Please contact your builder, contractor or a qualified professional for an evaluation. Additional information can also be found at