Field Controls 12M+MG2 Oil/Gas Appliance Draft Control

Oil/Gas Appliance Draft Control; Type Draft Control; Used On Commercial/Industrial Oil/Gas/Solid Fuel Appliance; Overall Dimension 13-1/4 Inch Outer Diameter; Control Size 12 Inch; Nominal Capacity 113 Square Inch; Circumference 34-1/2 to 37-3/4 Inch; Material Thickness 20 Gauge (Ring), 16 Gauge (Gate), 24 Gauge (Collar); Approval UL (Canada and US), CSA