York S1-373-19801-403 Burner Assembly 318973-401 while the clockwise (CW) rotation

while the clockwise (CW) rotation ensures correct airflow direction for heat rejection

it features refined material composition to handle high-pressure hydronic applications

common issues in high-cycle environments

This after-filter is designed for use in 16x25 and 20x25 White-Rodgers electronic air cleaners

and ball valves in demanding commercial HVACR environments

York S1-373-19801-403 Burner Assembly 318973-401 while the clockwise (CW) rotationThe York S1 373 19801 403 Burner Assembly is a precision engineered OEM replacement part designed for high performance combustion in gas furnaces. This gas furnace burner assembly is constructed from durable stainless steel, ensuring it can withstand the thermal stresses of repeated firing cycles without warping or premature oxidation. As a critical Source1 burner upgrade, this assembly often comes with the igniter and flame sensor factory installed,