Key Benefits Dual Mounting Versatility: Equipped with both a foot mount and a 1/2 inch NPT hub for flexible installation in junction boxes or equipment panels

It serves as a direct professional replacement for the Honeywell RDS-18

simplifying liquid line piping

Proper calibration of the manifold pressure during installation is critical to achieving the specified BTU output and maintaining low-emission operation across the firing range

It is not rated for steam applications

Lennox 25W27 TXV 319825-402 Key Benefits Dual Mounting Versatility:The Lennox 25W27 TXV is a critical OEM thermal expansion valve designed for precise refrigerant flow control in high efficiency cooling systems. Engineered specifically for Lennox air conditioner units and heat pump systems, this brass body metering device optimizes evaporator performance by maintaining an exact superheat. As a veteran grade HVAC replacement part, the 25W27 ensures the quantity of refrigerant entering the coil matches the thermal