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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Look for a bulging top
this is the current manufacturer-designated replacement
and Airquest
including the 243-8 and 243-12 models
Williams P321826 Limit Switch Look for a bulging topThe Williams P321826 Limit Switch is a critical safety component designed specifically for Monterey Counterflow Top Vent Furnaces, including the 250, 350, and 500 series. As a veteran technician knows, maintaining the integrity of the vent safety shutoff system is non negotiable for preventing flue gas spillage and potential carbon monoxide hazards. This replacement vent limit switch is engineered to monitor exhaust temperatures and will break the
