ARMSTRONG 578B Cirrus Ceiling Tile, 24 in W x 24 in L, Angled Tegular, 15/16 in
Ceiling Tile, Edge Type Angled Tegular, 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 0.35, Recycled Content 77...