Dielectric Union, Pipe Fitting Material Brass, Malleable Iron, Fitting Connection Type MIP x Solder, Pipe Size - Pipe Fitting 1/2 in, Max. Pressure 250 psi, Max. Temp. 180 Degrees F, Gasket Material Buna-N, Nut Material Steel, Insulator Material Polysulfone, Hex Size 1 1/2 in, Standards ANSI B 16.39; Federal Specifications for Tensile Strength and Thread End Connections. This item has been restricted from sale in the following state (s): []