California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Air Diverter, Material Plastic, Product Type Air Diverter, For Nominal Duct Diameter Not Applicable, Thickness 2.5 in, Overall Diameter Not Applicable, Compatible with Product Type T-Grid Diffusers, Overall Height 22 1/4 in, Compatible with Grainger Part Number T-Grid Ceilings, Shape Triangular, Finish Matte, Overall Width 22 1/4 in