Dielectric Flange, 2 1/2 in, Female, Solder, Copper Silicone Alloy, 7 in, 2 1/2 in, Male, Solder, Copper Silicone Alloy, 7 in, Number of Bolt Holes 4, Brass, 175 psi Maximum Operating Pressure, Insulator Material Polysulfone, Includes Fasteners Yes, 33 Degrees to 180 Degrees F