Round Smoke Damper, 8-1/4 In. D, 120V, DAYTON, Mfr# 3HGH7

Round 5.9 In. dia GStl Mtrzd Smoke Damper, For Nominal Duct Diameter 6 in, Damper Application Smoke, Number of Panels 1, Overall Height 5 7/8 in, Overall Length 8 1/8 in, Rough Opening Shape Round, For Duct Shape Round, Overall Width 8 1/4 in, Frame Material Thickness 20 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Overall Diameter 5 7/8 in, Rough Opening Width 6 in, Damper Type Dynamic, Maximum Air Velocity 3000 fpm, Nameplate Voltage 120V AC, Rough Opening Diameter 6 in