Field Controls 4RC Oil/Coal-Fired Heating Equipment Draft Control

Oil/Coal-Fired Heating Equipment Draft Control; Type Draft Control; Used On Residential and Commercial Oil, Gas/Coal-Fired Heating Equipment; Overall Dimension 4-9/16 Inch Outer Diameter; Control Size 4 Inch; Nominal Capacity 12.6 Square Inch; Circumference 9-1/2 to 15-3/4 Inch; Material Thickness 22 Gauge (Ring), 24 Gauge (Gate), 26 Gauge (Collar); Approval UL (Canada and US)