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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant metering tube for the ADPF182416BA evaporator coil. The flowrator (piston-style metering device) controls how refrigerant is fed into the coil for proper evaporation and heat transfer. A kinked, corroded, or mismatched inlet tube disrupts metering, causing poor cooling, frosting, or pressure imbalances — so an exact-fit OEM replacement is critical to restoring rated capacity.
Refrigerant metering is unforgiving of "close" parts — the wrong bore or length shifts superheat and subcooling out of spec. The OEM B1796630 is matched to the ADPF182416BA coil's designed flow rate, ensuring correct refrigerant distribution and efficiency the factory intended.
Advanced. This is a sealed-system component — replacement requires EPA 608 certification, recovery of refrigerant, brazing, evacuation, and recharge. Recommended for licensed HVAC technicians only.