When replacing an existing unit

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

the TFDKR00 is built to withstand the mechanical stresses of commercial mechanical rooms

This non-polar

000 BTU/hr capacity for robust safety performance

Aaon P63270 Sensor/Electrode Els PW 17895 When replacing an existing unitThe 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