This pressure control device is designed to regulate pressure levels in HVAC systems, ensuring optimal performance and efficiency. With a maximum pressure capacity of 100 PSI and a range of up to 20 inches, it can handle a variety of applications. The P170MA-88 model from Johnson Controls features reliable construction and precise calibration, making it a trusted choice for HVAC service technicians. Its compact size allows for easy installation in tight spaces, while its user-friendly design simplifies maintenance and troubleshooting.