FIELD CONTROLS Draft Control,63.6 N Cpcty,8 to 10in dia

8-10 In.dia SS Barometric Draft Control; Damper Application Barometric Draft Control; For Nominal Duct Diameter 8 in; 9 in; 10 in; Frame Material Steel; Number of Panels Not Applicable; Maximum Air Velocity Not Applicable; Overall Height 9 3/4 in; Rough Opening Diameter 9 in; Rough Opening Shape Round; Fits Fan Diameter Not Applicable; For Duct Shape Round; Free Area Not Applicable; Overall Width 9 3/4 in; Frame Material Thickness 20 ga; Overall Length 12 1/4 in; Connection Type Press Fit