... The product is compatible with various types of comme CNG Pressure GaugeParameters:1) Pressure gauge: dia.: 50mm, 54mm, 63mm, 75mm2 ... material: ABS, stainless steel 3044) Connection part material: HPB59-1 brass, or stainless steel SUS3165) Connection thread: G1/4 ... (PF1/4); M14 x 1.5, ZG1/4 (PT1/4); NPT1/4 6) ... - 400Bar / 6,000PSI7) Accuracy Grade: 2.5 . CNG Pressure Gauge