Duct Adapter 20 in Dia.Round

Duct Adapter For Nominal Duct Diameter 20 in Inlet Diameter 20 in Material Polyester Product Type Duct Adapter Material Thickness 0.01 in Overall Length 18 in Maximum Pressure Rating 3 in wc Weight 0.77 lb For Duct Height 8 in Flange Inner Diameter 8 in For Duct Width 8 in Flange Outer Diameter 8 in Maximum Airflow 3 000 cfm Inside Diameter 8 in Number of Holes on Flange Not Applicable Overall Width 8 in Bolt Circle Diameter Not Applicable Minimum Pressure Rating 0.1 in wc