FG-4004-DR (Formed Steel 4" Deep Straight Blade Hinged Door)Description: Formed Steel, Straight Blade - HINGED LOUVER DOOR Depth: 4 inches Blade Angle: 45 Degree Thickness: 18 Ga Jetkote Galv. (Other Materials upon Request) Free Area: 45% (Based on 48"x 48" Unit) |