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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant component for the ARUF048-00A-1A air handler. The flowrator (piston-style metering device) regulates refrigerant flow into the evaporator coil, and this inlet tube delivers liquid refrigerant from the line set to the metering device. Correct sizing and routing of this tube are critical to proper coil feed, superheat, and overall cooling performance — a damaged or incorrect tube can cause poor metering, low capacity, or coil flooding.
Refrigerant-side components are dimensionally precise; this OEM inlet tube is bent and sized to match the ARUF048 coil and flowrator assembly exactly. Generic tubing must be cut and formed in the field and rarely matches the factory geometry, risking metering errors and leak-prone joints. For refrigerant components, OEM is the recommended choice.
Advanced. Replacement requires recovering refrigerant, brazing, evacuating, and recharging the system — EPA Section 608 certification is required. This is a professional HVAC technician job. Estimated time: 1–2 hours plus recovery/charge.