Key Benefits for the Contractor: Precise 1-2 PSI Range: Provides a stable 20-42" W

Engineered to withstand a 680 PSI maximum pressure

For 1" valves

This genuine OEM replacement part is specifically designed for Modine PD400 and BD400 unit heaters

Universal Refrigerant Compatibility: Rated for use with CFC

Johnson Controls A99BB-400 Temperature Sensor Key Benefits for the Contractor:The Johnson Controls A99BB 400 Temperature Sensor is a precision PTC silicon sensor engineered for high accuracy temperature monitoring in commercial refrigeration and HVAC systems. Designed for seamless integration with System 450 controls and Penn A419 A421 series controllers, this thermistor style sensor features a linear resistance to temperature output, minimizing calibration drift in the field. The A99BB 400 is equipped with a 13 foot PVC cable