These Square-to-Round Duct adapters allow you to join lengths of dissimilar conduit where 3¼" Square Conduit exists.
Square End Nominal Inside Diameter: 2.75" (69.85 mm)
Square End Nominal Outside Diameter: 3.25" (82.55 mm)
Round End Bell Socket Inside Diameter: 4.375" (111 mm)
Round End Bell Socket Outside Diameter: 4.625" (117 mm)
Cable Diameter Range [in]:
            0.157-1.125
        Cable Diameter Range [mm]:
            4.0-28.6
        Height [in]:
            6
        Length [in]:
            20
        Packaging Type:
            Boxes
        Width [in]:
            6
        Shipping Height [in]:
            6
        Shipping Length [in]:
            20
        Shipping Method:
            Parcel
        Shipping Width [in]:
            6
        Unit of Measure:
            EA.
        Units Per Package:
            10
        Weight [lb]:
            2.000000
         
             
                             
                             
                 
                 
                 
                