Through Wall/Floor Sealing Assembly, Constructional Feature Watertight, Trade Size 2 Inch (Conduit/Steel Pipe/Cast Iron Pipe), 2-1/4 Inch (Copper Tube), Wall Thickness 4-3/16 to 14 Inch, Outer Diameter 2.375 Inch (Conduit/Steel Pipe/Copper Tube), 2.5 Inch (Cast Iron Pipe), Material Hot Dip Galvanized Alkyd Enamel Coated Malleable/Ductile Iron, Number of Clamp Screw 3