FIELD CONTROLS 4"RC Draft Control,12.6 N Capcty,3 to 5in dia
$58.19
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,...