Armstrong Ceiling Tile,24 in L,24 in W,PK12 303A

30-Year Limited System Warranty Material Mineral Fiber Color White Standards ASTM E1264 Classification Type I Application Corridors, Offices, School/Class Series TundraYou may also like Mesa Ceiling Tile, 24 in W x 24 in L, Beveled Tegular, 9/16 in Grid Size, 12 PK.