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The Goodman A3468601 is genuine OEM 3/16 in. inside-diameter tubing that connects the pressure switch to the inducer/vent system on your furnace. It carries the negative-pressure signal that proves proper venting before the burners ignite. This hose is a direct-fit replacement for the Goodman/Amana ADV80703BXBB gas furnace. Cracked, hardened, or clogged tubing is a leading cause of nuisance pressure-switch lockouts — replacing it restores reliable ignition sequencing.
OEM tubing is rated for the temperature and condensate exposure inside the furnace vestibule and holds the correct ID for an accurate pressure signal. Generic vinyl tubing can soften, kink, or fail to seal, triggering intermittent no-heat faults. At this price, genuine OEM is the smart choice.
Easy — a 5-minute DIY swap. Pull the old hose from both barbed fittings and press the new length on. Cut to match the original run. Disconnect power before servicing.