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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant tube that feeds the flowrator (piston-style) metering device on the ARUF030-00A-1 air handler evaporator coil. It carries liquid refrigerant from the line set into the distributor/flowrator assembly, establishing the correct entry geometry for proper refrigerant metering across the coil circuits. Kinked, corroded, or previously brazed-and-damaged inlet tubes can restrict flow and degrade cooling performance.
This genuine OEM Goodman tube is formed to the exact length, bend, and fitting diameter required to mate with the ARUF030 flowrator body. Fabricating a substitute from generic tubing risks incorrect bend radius, restricted bore, and leak-prone joints. The OEM inlet tube ensures correct refrigerant feed and a clean, factory-spec brazed connection.
Hard — professional required. Replacement is a refrigerant-side repair: the system must be recovered, the old tube unbrazed and the new one brazed in under nitrogen purge, then evacuated and recharged. This work requires EPA Section 608 certification and proper tooling. Do not attempt without an HVAC license.