Lennox 21917 Plate 30067439-890 ensuring the burner circuit interrupts

ensuring the burner circuit interrupts reliably if a low-water condition occurs

Given the double-disc design

resilient seals

Broad Compatibility: Replaces factory part numbers 37J5601 and 10K63

Lennox 21917 Plate 30067439-890 ensuring the burner circuit interruptsAs a seasoned technician, you know that maintaining precise internal static pressure and airflow direction is non negotiable for system longevity. The Lennox 21917 Plate is a critical OEM Cut Off Plate designed specifically for Lennox blower housing assemblies and heat exchanger transitions. This heavy gauge steel component acts as an airflow diverter, preventing air bypass and ensuring that the high velocity discharge from the blower wheel is