8" FLX-STEEL DUCTING HEAVY DUTY Flexible steel hose is strip-wound interlocked and made from hot-dipped galvanized carbon steel. There are two different gauge thicknesses to choose from, depending on the severity of service. It can be twisted without unraveling. Steel fl ex is rated to 788� F.
From fully collapsed, tubing can be extended 2.5�� per foot under a tension load of 25-lbs. minimum to 45-lbs. maximum. Install in systems in semicompressed condition, midway between fully extended and fully compressed.