Door Bottom, Anodized Finish, Insert Size 11/16 in, Flange Height 1 in, Width 1 9/32 in, Length 48 in, Projection 11/16 in, Insert Material ECO V Bio Based, Color Gold, Performance Heavy Duty, Insert Color Black, Flange Material Aluminum, Hardware Included, For Use With 48 in Wide 1-3/4 in Doors, Standards Air Infiltrated ASTM E-283 Rate of Leakage, Certified Green Guard Gold, Sound Tested ASTM E90, UL Fire Rate 10C Posative Pressure, UL Fire Rating UL10C