1260 Intermediate-Duty and 1280 Heavy-Duty seismic ceiling suspension tees are fire rated and made from hot-dip galvanized steel with aluminum cap for added corrosion resistance in interior environments. Ceiling grid is compatible with industry standard acoustical panels, lighting and air diffusers. Ceiling suspension is flame spread Class A and Fire-Front ceiling grid systems are fire rated with multiple listings from Underwriters Laboratories Inc. (ULI). The ceiling suspension is suitable for general areas and is ICC-ES listed for seismic ceiling grid applications. All CMC stab cross tees include Quick-Click™ integral clips for fast and sturdy installation. Select components are available in HRCmax™ (High Recycled Content) to maximize results on sustainable construction projects.