Dielectric Flange, 2 in, Female, NPT, Zinc-Plated Galvanized, Gray Cast Iron, 5 1/8 in, 2 in, Female, NPT, Zinc-Plated Galvanized, Gray Cast Iron, 5 1/8 in, Number of Bolt Holes 4, Gray, 175 psi Maximum Operating Pressure, Insulator Material...