Field Controls 6M Oil/Coal-Fired Heating Draft Control

Oil/Coal-Fired Heating Draft Control; Type Draft Control; Used On Residential Gas/Coal-Fired Heating Equipment; Overall Dimension 6-17/32 Inch Outer Diameter; Control Size 6 Inch; Nominal Capacity 28.3 Square Inch; Circumference 15-3/4 to 22 Inch; Material Thickness 24 Gauge (Ring), 26 Gauge (Gate), 26 Gauge (Collar); Approval UL (Canada and US)