Draft Control 12.6 N Capcty 3 to 4in dia

4 In.dia SS Barometric Draft Control Damper Application Barometric Draft Control For Nominal Duct Diameter 3 in 4 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 24 ga Overall Length 7 in Connection Type Press Fit Frame Depth 7 in