The Bosch HVAC 8718600019 Disc Pressure Sensor 4-Bar is a pressure-sensing component designed to monitor system pressure in compatible Bosch HVAC equipment. It detects pressure changes within the system and provides feedback to the control system, helping maintain safe and reliable operation. This sensor is used in compatible heat pumps, heating systems, and other HVAC equipment requi... https://www.partshnc.com/bosch-hvac-8718600019-disc-pressure-sensor-4-bar