Available in the below API or RC threads:
2 3/8” Reg , 2 3/8” IF, 2 7/8” Reg, 2 7/8”IF , 3 ½” Reg , 3 ½” IF, 4” IF, 4 ½” Reg, 4 ½” IF, 6 5/8”Reg
4″ Remet, 4½” Remet, 4″ Metzke, 4½” Metzke, 102 ARD and 4″ Smith