Ensure optimal system performance with the Lennox 42W42 Thermal Expansion Valve (TXV) Kit. This genuine OEM part—catalog number 600370-01—is engineered specifically for select Lennox HVAC systems to deliver precise refrigerant flow control and improve overall energy efficiency.The TXV regulates refrigerant into the evaporator coil based on demand, helping maintain consistent cooling and preventing coil icing or inefficient operation. Ideal for systems retrofitted for R-410A refrigerant or those requiring enhanced cooling accuracy, this kit ensures balanced superheat and better humidity control across varying load conditions.Key Features:

• Genuine Lennox OEM TXV Kit (Part #42W42 / 600370-01)
• Provides precise metering of refrigerant for optimal performance
• Helps extend system life and maintain proper superheat
• Designed for use with specific Lennox air handlers or coils
• Essential for system retrofits or replacements where factory TXV was not included

Compatible models should be confirmed through the system's technical documentation or by contacting Lennox support. Backed by Lennox’s quality assurance, the 42W42 TXV Kit is a reliable choice for contractors and homeowners looking to enhance the performance of their HVAC system.Available now at Beenimax—trusted by contractors nationwide.