dielectric union, dielectric material, dielectric strength, dielectric DIELECTRIC UNION FEMALE X BRASS MALE THREAD STANDRAD ANSI 250PSI 1800F MATERIAL: STEEL, BRASS, EPDM, ABS / NYLON SURFACE TREATMENT: ZINC PLATED Bitmap SS-DU-024 1/2" FEMALE X 1/2" BRASS MALE THREAD SS-DU-025 3/4" F......