Through Wall/Floor Sealing Assembly, Constructional Feature Watertight, Corrosion Resistant, Trade Size 1-1/2 Inch (Conduit/Steel Pipe), 1-3/4 Inch (Copper Tube), Outer Diameter 1.9 Inch (Conduit/Steel Pipe), 1.875 Inch (Copper Tube), Wall Thickness 4-3/16 to 14 Inch, Material Hot Dip Galvanized Alkyd Enamel Coating Malleable/Ductile Iron (Body), PVC Coated Steel (Pressure Ring), Neoprene (Grommet), Used On Sealing Around Conduit, Pipe/Tubing Passing Through a Wall or Floor, Includes Grommet, Ring, Sleeve, (3) Clamp Screw