Dielectric Flange, 3 in, Female, NPT, Zinc-Plated Galvanized, Gray Cast Iron, 6 3/4 in, 3 in, Female, NPT, Zinc-Plated Galvanized, Gray Cast Iron, 6 3/4 in, Number of Bolt Holes 4, Gray, 175 psi Maximum Operating Pressure, Insulator Material...