63 In.H-w 12.8 In.L squ stl mtrzd cntrl dampr for nominal duct diameter not applicable damper application motorized number of panels 2 overall height 63 in overall length 12 3 4 in rough opening shape square for duct shape square overall width 63 in frame material thickness 14 ga blade material galvanized steel maximum air pressure 4 in wg overall diameter 63 in rough opening length 61 in rough opening width 61 in damper type dynamic maximum air velocity 3500 fpm
Brand: Dayton
