Door Bottom Mill Finish Insert Size 11/16 in Flange Height 1 1/8 in Width 1 3/4 in Length 48 in Projection 11/16 in Insert Material ECO V Bio Based Color Aluminum 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