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It features a 1/4-inch hub bore with a CCW (Counter-Clockwise) rotation as viewed from the discharge side
requirements allows for proper gas pressure regulation and prevents the equipment from operating outside its intended set point
as it will not affect or mask black lights
preventing localized leaks and protecting the internal spring and calibration from job-site contaminants
Lennox 79J21 Ignitor It features a 1/4-inch hubThe Lennox 79J21 Ignitor is a heavy duty, genuine OEM electrode designed specifically for high demand residential and commercial furnace applications. As a dual purpose Lennox spark ignitor and flame sensor, this component provides the high voltage arc necessary for rapid gas ignition while simultaneously monitoring the burner flame to ensure safe, continuous operation. This furnace ignitor replacement is built using a glazed L 5 steatite insulator