ARMSTRONG 2820A Calla Ceiling Tile, 24 in W x 24 in L, Square Lay-In, 15/16 in

Ceiling Tile, Edge Type Square Lay-In, Grid Size 15/16 in, Overall Length 24 in, Overall Width 24 in, Ceiling Attenuation Class 35, Fire Retardant Class Class A, Light Reflectance 86 Percent, Noise Reduction Coefficient 0.85, Recycled Content 35 Percent, Texture Smooth, Application Libraries, Music Rooms, Color White, Coverage 40 sq ft, Features 30-Year Limited System Warranty Against Visible Sag, Mold, and Mildew, Material Mineral Fiber. This item has been restricted from sale in the following state (s): []