Field Controls 4RC 4″ Draft Regulator For Oil, Wood, & Coal

Description 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) Resources:FLDCONE00022_30.pdfFLDCONINST00020.pdf