Always verify the lead length and fitting size against the manufacturer's parts list for your specific serial number

Extended Connectivity: Features a 96" wire length

the Belimo B318B valve is a robust choice

Common Questions: Is this diaphragm compatible with reverse-acting actuators

Reznor 258860 TXV 318973-401 Always verify the lead lengthThe Reznor 258860 is a heavy duty thermal expansion valve (TXV) kit engineered for precise refrigerant metering in commercial cooling applications. This OEM replacement part is specifically calibrated for use with Reznor AUCA (size B 090), AUD2, and AUH3 air handlers and condensing units. As a vital component of the refrigeration cycle, this TXV kit regulates the flow of liquid refrigerant into the evaporator coil, maintaining the optimal superheat