FIELD CONTROLS 6"MG1 Draft Control,28.3 N Capcty,5 to 6in dia
$138.99
6 In.dia SS Barometric Draft Control, Damper Application Barometric Draft Control, For Nominal Duct Diameter 5 in; 6 in, Frame Material Steel, Number of Panels Not Applicable, Maximum Air Velocity Not Applicable, Overall Height 6 5/8 in, Rough Opening...