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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant-side component designed for the Goodman ASPF426016AA air handler and compatible ASPF-series models. The flowrator inlet tube routes liquid refrigerant into the metering device feeding the evaporator coil, and a cracked, kinked, or corroded inlet tube can cause poor cooling, frosting, or refrigerant leaks. Replacing it with the factory part restores correct metering geometry and a leak-free brazed connection.
The genuine Goodman B1796630 is manufactured to factory tube diameter, wall thickness, and bend tolerances so it seats cleanly against the coil and metering device. Generic or fabricated substitutes often vary in diameter and temper, leading to restricted flow, braze-joint leaks, or improper subcooling. For a refrigerant-circuit part, OEM is strongly recommended to protect system performance and warranty coverage.
Difficulty: Advanced (4/5). This is a sealed-system repair. Refrigerant must be recovered, the old tube unbrazed, and the new tube brazed in under flowing nitrogen, followed by evacuation and recharge. EPA Section 608 certification and recovery equipment are required. We recommend a licensed HVAC technician perform this installation.