providing the durability expected by veteran contractors in the field

Using genuine ASCO replacement parts is essential for maintaining the mechanical integrity of the valve body and ensuring compatibility with existing flow control hardware

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

Certified Precision: Engineered to Nordstrom's strict tolerances for G6 and G7 series gas furnaces

Johnson Controls A99BB-400 Temperature Sensor providing the durability expected byThe 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