In the event of a thermal excursion reaching 212

This Heil Quaker replacement gasket is precision-cut from high-grade foam material to match the exact physical dimensions (approximately 4

Broad Compatibility: Directly compatible with Marley

and larger 325-9 series vent-limited regulators

it monitors the burner area for escaping flames or "rollout" caused by heat exchanger failure

York S1-025-26392-012 Rollout Switch In the event of aThe York S1 025 26392 012 Rollout Switch is a critical safety component designed for precise thermal monitoring in high efficiency gas furnaces and HVAC systems. As a genuine OEM York replacement part, this SPST (Single Pole Single Throw) limit control ensures the burner circuit is interrupted if a flame rollout condition is detected. This specific model features an automatic reset configuration, calibrated to "open" and break the electrical circuit