Type ATX flexible conduit utilizes the flexibility of the standard LT core, coupled with the advantage of a thermoplastic rubber jacket that is virtually unaffected by temperature extremes and contains no halogens. The material has a flammability rating of UL 94‑HB and is UV stabilized. ATX is used in situations where concerns of resistance to temperature exposure exist. These include heavy outdoor equipment, boilers and furnaces, and sub‑zero areas.