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The Goodman B1796630 flowrator inlet tube is the genuine OEM refrigerant tube that feeds the flowrator (piston) metering device on ARUF042 series air handlers, including the ARUF042-00A-1A. Proper tubing is essential for correct refrigerant distribution and the rated cooling performance of the evaporator coil.
This factory tube is sized and bent to match the original assembly, ensuring leak-free brazed connections and correct alignment with the coil header.
Aftermarket tubes may not match the factory bend radius or length, risking kinks, restricted flow, and difficult brazing. The OEM B1796630 guarantees an exact factory fit and clean connections.
Advanced. Replacement requires recovering refrigerant, brazing, evacuating, and recharging the system — work that should be performed by an EPA-certified HVAC technician.