this fitting is often referred to by its 3/4" Outside Diameter (OD)

000 BTU/hr capacity for robust safety performance

protecting delicate internal windings from excessive heat

meaning it has a set diameter

this passive sensor provides exceptional linearity and accuracy

Aaon P63270 Sensor/Electrode Els PW 17895 this fitting is often referredThe Aaon P63270 Flame Sensor and Sparker Electrode is a critical combustion component designed for precise flame rectification and reliable ignition in high performance rooftop units and chillers. Engineered to withstand the thermal stresses of continuous burner operation, this dual function electrode ensures consistent HVAC flame sensing to prevent nuisance lockouts and HVAC ignition failure. As a direct OEM Aaon replacement part, the P63270