Safety Integrity: Acts as an essential fail-safe to cut power to the gas valve if airflow is restricted or temperatures exceed safe limits

The integrated elongated slot is scaled for standard 40

maintaining critical airflow and system static pressure

The McDonnell & Miller G-2-SS Probe Rod (Part Number 179156) is a heavy-duty 24-inch 316 stainless steel probe rod engineered for high-demand liquid level control applications

always verify the internal mounting dimensions and center port clearance before attempting to cross-reference with other manufacturers

Nordyne 632452R Pressure Switch Safety Integrity: Acts as anThe Nordyne 632452R Pressure Switch is a critical OEM safety component for gas fired furnaces and HVAC systems. As a Single Pole Single Throw (SPST) air pressure sensing switch, it is calibrated to a precise 1. 00" WC (Water Column) set point. This switch serves as the direct 632390 replacement, ensuring proper airflow verification for the combustion process. When the inducer motor or draft booster creates the required negative pressure, the switch