Laars Heating Systems 2400-556 Flow Sensor R-134A Also identified as C340056P04 and

Also identified as C340056P04 and SWT01259

this unit provides the exact footprint needed for a secure seal

Key Benefits Optimized Airflow Calibration: Specifically tuned for ICP gas furnaces to ensure the proper air-to-fuel ratio and maximize heat exchanger efficiency

extending the operational life of the setpoint mechanism

Laars Heating Systems 2400-556 Flow Sensor R-134A Also identified as C340056P04 andThe Laars Heating Systems 2400 556 Flow Sensor is a precision engineered OEM replacement part designed for critical fluid dynamic monitoring in hydronic boiler systems. As a veteran grade HVAC flow sensor, this component ensures the boiler maintains appropriate flow rates before allowing the ignition sequence, protecting the heat exchanger from dry firing and thermal stress. This sensor is specifically calibrated for compatibility with the Laars