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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant tube that connects the liquid line to the flowrator (piston) metering device on ARPF303016AA evaporator coils. This small but critical tube routes refrigerant into the metering orifice so the coil charges and meters correctly. A kinked, corroded, or leaking inlet tube causes poor cooling, frost-back, or refrigerant loss — and this exact replacement restores a clean, leak-free path.
This is the factory OEM tube (B1796630), pre-bent to the exact length, diameter, and routing of the coil assembly. Generic tubing must be measured, cut, and bent by hand, raising the risk of leaks and improper fit. The OEM part brazes in place with no fabrication, ensuring a tight, reliable refrigerant seal.
Advanced (4/5). Requires EPA Section 608 certification — the system must be recovered, the tube brazed in, evacuated, and recharged. This is a technician-only repair involving open refrigerant work. Do not attempt without proper tools and certification.