Marvair 20509 TXV Valve 320735-701 As the direct OEM updated

As the direct OEM updated version for 43-26261-48

Replacing a drifted or failed furnace limit switch with this genuine Carrier furnace replacement part ensures the heat exchanger remains protected from overheating while maintaining the rigorous operational standards of the primary heating circuit

this unit is built on the proven AGA5573EXG model platform

this genuine York part ensures the correct pinout and gauge to handle the high-torque startups and modulation profiles of residential air handlers

Marvair 20509 TXV Valve 320735-701 As the direct OEM updatedThe Marvair 20509 TXV Valve is a high precision thermostatic expansion valve engineered for 3 ton HVAC systems, providing critical refrigerant metering for both commercial and residential applications. Featuring a 3 8 inch by 5 8 inch ODF connection, this thermal expansion valve is designed to stabilize superheat by accurately modulating refrigerant flow into the evaporator coil. As the official replacement TXV valve and direct updated version for