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The Goodman A3468601 is a genuine OEM 3/16" inner-diameter pressure switch tubing designed for the Amana/Goodman AMH80703ANAA gas furnace and other compatible 80% AFUE models. This small silicone/rubber hose connects the pressure switch to the inducer draft port, allowing the switch to accurately verify combustion airflow before the burners ignite. A cracked, brittle, or disconnected tube is a common cause of nuisance lockouts and "pressure switch open" fault codes.
OEM vs. Generic: This is the factory-specified Goodman part, cut and formulated to the exact bore and flexibility the furnace expects. Generic bulk tubing can be over- or under-sized, collapse under vacuum, or degrade faster near the burner assembly, leading to false pressure-switch trips. For reliable ignition sequencing, OEM is the safe choice on a low-cost consumable like this.
Install difficulty: Easy (DIY-friendly). Power down the furnace, slide the old tube off both barbed fittings, and press the new one on. No tools required in most cases. Always confirm your exact model before ordering.