Easy to Install and Maintain Only Standard Tools Required for Pressure Adjustment and Orifice Available ConfigurationsNon-Relieving: 1-1/4-inch FNPT Body: Types CS400ING-6AC6 and CS400ING-8AC6 1-1/2-inch FNPT Body: Type CS400ING-8AC7 2-inch FNPT Body: Types CS400ING-5AC8, CS400ING-6AC8, CS400ING-8AC8, and CS400ING-8CC8 With Internal Relief: 1-1/4-inch FNPT Body: Types CS400IRG-8BC6, CS400IRG-8GC6 ...