from 07/18/2022. PartQualifier: for refridgerant hose. Pressure sensor. R-744 REFRIGERANT. A safety Switch that monitors the Pressure of the Refrigerant. A/C Refrigerant Pressure Sensor. From 07/18/2022. Location-Discharge Hose. Location-Liquid Hose. Included with: Lower pipe, Rear AC tube Part cannot be reused/reinstalled, Refrigerant Hose Part cannot be reused/reinstalled, Upper pipe Part cannot be reused/reinstalled.