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The genuine OEM Goodman A3468601 is 3/16 inch inner-diameter pressure switch tubing engineered for the AMS80904BXAA gas furnace and compatible Goodman/Amana models. This flexible hose connects the induced-draft blower's pressure tap to the pressure switch, allowing the switch to verify proper venting draft before ignition. Cracked, brittle, or clogged tubing is a leading cause of pressure-switch lockouts and no-heat calls.
The OEM A3468601 is rated for the heat and vacuum conditions near the inducer, resisting hardening and collapse that throw false pressure faults. Generic tubing may degrade quickly or fit loosely at the barbed ports. OEM ensures a reliable, leak-free sensing line.
Easy. Simply pull the old tubing off both barbed fittings and slide the new length on, routing it clear of hot surfaces. A quick, DIY-friendly fix for intermittent pressure-switch errors.
Authentic Goodman replacement, shipped fast from National HVAC Parts.