Pressure Relief Device (PRD), End Plug•CYLINDER CONNECTION: 1-1/8 UNF •OUTLET THREAD: 9/16-18 SAE (#6 ORING) •VOLTAGE: 12V •ALUMINUM BODY •WORKING TEMP: -40*C -85*C •APPLICATION: CNG SAFETY DEVICE FOR TYPE 1, 2, or 3 CYLINDERS •OPTIONAL TEMP SENSOR •MAX WORKING PRESSURE: 4500 PSIG •SWIVEL FLARE OUTLET OPTIONS