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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant metering component for ATUF193116AA air handlers. The flowrator (piston-style metering device) regulates refrigerant flow into the evaporator coil, and the inlet tube delivers that refrigerant cleanly to the metering body. Using the correct factory tube ensures proper line geometry and a leak-free brazed connection.
This genuine Goodman OEM tube is formed to exact factory bends and diameter, so it lines up with the coil and metering device without rework. Generic tubing must be cut and bent to fit and can introduce kinks or alignment stress that lead to restricted flow or refrigerant leaks. OEM removes that risk on a critical sealed-system part.
Advanced. This is a sealed-system refrigerant part — replacement involves recovering refrigerant, brazing the connection, pulling a vacuum, and recharging. It should be performed by an EPA-certified HVAC technician.