the 903404 manages the high temperatures of flue gases while preventing the buildup of hazardous combustion byproducts

Precise Control: Features a specialized characterizing disc that provides an equal percentage flow response

Ensure you verify the valve model number prefix before installation to confirm this specific kit matches the 3-inch V43 valve configuration

ensuring a technician can inspect the system for airflow restrictions or mechanical failures before resuming operation

this assembly is the factory-authorized equivalent for Lennox part number 69J3701

Burnham Boiler 80160123 Ignition Module R-410A the 903404 manages the highThe Burnham Boiler 80160123 Ignition Module, identified as model G775RGA 3, is a critical component for maintaining precise sequence control in G2 cast iron boilers and various residential hydronic systems. This intermittent pilot ignition module manages the pilot flame signal, gas valve actuation, and main burner ignition with high speed response times. Designed for 24VAC systems, the 80160123 serves as a drop in Burnham replacement part for aging or