Anvil 8700164455, Malleable Iron Pipe Fitting, Floor Flange, 1-1/2" NPT Female, Galvanized Finish Floor flange for securing pipe to the floor or a wall Female National Pipe Taper (NPT) threads for connecting to a male threaded pipe Bolt holes to connect to flat surfaces Made from malleable iron for tensile strength Galvanized finish resists rust in water, air, and steam applications