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Lennox 42W37 is a 3/8X1/2 Inch ODF 3 Ton Thermal Expansion Valve designed for efficient, reliable operation in HVAC systems. This part is critical for controlling refrigerant flow in air conditioning units.
This TXV valve is essential for managing the flow and pressure of refrigerant within commercial HVAC systems, enhancing efficiency and performance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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