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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant-metering component engineered for the ARPF363616AA air handler. The flowrator (piston-style metering device) inlet tube routes liquid refrigerant into the indoor coil distributor, ensuring proper TXV/piston metering and stable superheat across the evaporator. A cracked, kinked, or corroded inlet tube causes refrigerant leaks, poor cooling, and coil starvation — replacing it with the exact factory part restores rated capacity.
This is the genuine Goodman OEM tube, brazed and sized to factory tolerances for a leak-free fit. Universal generic tubing requires field bending and re-flaring, risks improper refrigerant charge, and may void warranty coverage. The OEM part installs in minutes and matches the original distributor geometry exactly.
Advanced (4/5) — Requires refrigerant recovery, brazing, evacuation, and recharge. EPA 608 certification and proper tools are required; professional installation is recommended.