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Verified Compatibility: Replaces HKN-RDMK4 and fits multiple OEM brands including SPX Flow
The Nordyne 632451R Pressure Switch is a critical safety component designed for precise draft monitoring in high-efficiency gas furnaces
Contractors rely on this valve when upgrading fixed orifice systems or replacing failed expansion devices in matched systems
Engineered with a durable cast iron frame and reinforced end brackets
Trane SWT3324 Pressure Switch 326058-755 Verified Compatibility: Replaces HKN-RDMK4 andThe Trane SWT3324 Pressure Switch is an essential safety component designed for high precision monitoring of combustion air and flue gas pressure in Trane and American Standard furnaces. This diaphragm actuated differential pressure switch is engineered to ensure the inducer motor is moving sufficient air before allowing the ignition sequence to proceed, preventing hazardous conditions resulting from blocked vents or intake pipes. Built for OEM