Cable and Rigid Conduit Sealing Bushing, Conduit Size 6 Inch, Wire Size (1) 4.32 Inch/(2) 2.44 Inch/(3) 2.21 Inch/(4) 2.07 Inch, Diameter 7-3/8 Inch, Material Slotted PVC Coated Steel (Disc), Neoprene (Sealing Ring), Stainless Steel (Socket Head Cap Screw/Washer), Approval UL E-11857, Conduit Inner Diameter 6.065 Inch