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The Goodman A3468601 is genuine OEM 3/16-inch inside-diameter pressure switch tubing for the AMV81155CXA gas furnace and related Goodman/Amana models. This hose connects the draft-inducer pressure tap to the furnace's pressure switch, allowing the switch to verify proper venting before the burners fire. Cracked, brittle, or clogged tubing is a common cause of pressure-switch faults and furnace no-heat lockouts.
The OEM A3468601 uses high-temperature silicone sized to seal tightly on the factory pressure taps. Generic tubing of the wrong durometer or diameter can leak, collapse, or degrade near the inducer, producing false pressure-switch trips. OEM ensures a leak-free draft signal.
Easy (1/5) — Slips onto the pressure tap and switch port; trim to length if needed. Route away from hot surfaces and confirm a snug fit.
Turn off power and gas before servicing. Consult a licensed technician if you are unsure.