Draft Control, 12.6 N Capcty, 3 to 5in dia, Field Controls, Mfr#: 4"RC

3-5 In.dia SS Barometric Draft Control, Damper Application Barometric Draft Control, For Nominal Duct Diameter 3 in; 4 in; 5 in, Frame Material Steel, Number of Panels Not Applicable, Maximum Air Velocity Not Applicable, Overall Height 4 5/8 in, Rough Opening Diameter 4 in, Rough Opening Shape Round, Fits Fan Diameter Not Applicable, For Duct Shape Round, Free Area Not Applicable, Overall Width 4 5/8 in, Frame Material Thickness 22 ga, Overall Length 7 in, Connection Type Press Fit