Pay in 4 interest-free payments of $23.11 Learn more
Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
Duotone aurora — cool blue brief on the left, soft violet sheet on the right for cargo details.
High-Volume Airflow: Engineered blade geometry maximizes static pressure capability for consistent air distribution across large ductwork
Generic boards often lack the specific logic required for multi-stage compressor control
Maintains a stable output signal that resists false signals in complex combustion management systems
How does this perform in high-heat areas near pilot burners
Ease of Installation: Standard 10-inch diameter with accurate bolt-hole alignment ensures a "first-time" seal for field service
Lennox 99K39 Expansion Valve 322056-301 High-Volume Airflow: Engineered blade geometryAs a veteran HVAC technician, I know that maintaining precise refrigerant control is the difference between a high efficiency system and a compressor failure. The Lennox 99K39 Expansion Valve is a genuine OEM replacement part designed for accurate metering in residential and commercial cooling systems. This Thermostatic Expansion Valve (TXV) utilizes a 3 8 inch inlet and a 1 2 inch outlet to regulate liquid refrigerant flow into the evaporator coil.
