TYPE SIZE / THREAD 1-1/2" NPSH with BOWL 1-11/16", 1-3/4", --13/16", 2", 2"NPSH with BOWL 2-5/16", 2-1/2"NPSH with BOWL 2-3/4", 2-13/16", 2-7/8", 1-1/2" NST with BOWL 1-11/16", 1-3/4", 1-13/16", 2", 2"NST with BOWL 2-5/16", 2-1/2"NST with BOWL 2-3/4", 2-13/16", 2-7/8"