Corrugated stainless steel tubing (CSST) is a flexible, thin-walled metallic tubing used to supply natural gas in some residential, commercial, and industrial buildings. CSST often has a yellow or black plastic coating and is typically found inside walls and through and along floor and ceiling joists. It’s not the same as the flexible appliance connectors that attach directly to your gas appliances.

If lightning strikes a structure containing CSST, there’s a risk the lightning can travel through the structure’s natural gas piping system and cause a leak or fire. To help protect structures from potential lightning strikes, the installation of an appropriate lightning protection system should be considered. Okaloosa Gas doesn’t provide inspection service for CSST installations. If you’re unsure whether CSST is installed in your structure, contact your builder, contractor, or a licensed plumber for more information and/or an evaluation.