Dielectric Union Steel Zinc-Plated Galvanized Brass C27450 Grade A Grade B 1 1/2 in 2 1/8 in Female NPT 11 1/2 1 1/2 in 1 3/4 in Female Solder Insulator Material Nylon Gasket Material EPDM Nut Material Iron Class Class 125 250 psi Maximum Operating Pressure 32 Degrees to 180 Degrees F 2 3/4 in Overall Length For Pipe Schedule Schedule 40