Resideo FC37A1064 Air Cleaner Cell 322838-754 This HVAC control transformer is

This HVAC control transformer is a direct replacement for the Honeywell AT140B1297 and is vital for maintaining the electrical integrity of your heating system's low-voltage circuit

the McDonnell & Miller 310800 is the correct valve body gasket for both the 21 and the 221 float-operated water feeders

While you must never use a lower voltage capacitor

This part number refers specifically to the burner assembly

Resideo FC37A1064 Air Cleaner Cell 322838-754 This HVAC control transformer isThe Resideo FC37A1064 Air Cleaner Cell is a heavy duty electronic air cleaner replacement engineered for 12" x 20" residential systems. As an essential HVAC filtration component, this cell features a dual section design consisting of an ionizer and a collector. It is precision crafted to capture airborne particulates as small as 10 microns, significantly reducing indoor air pollution. Designed for high performance compatibility, the FC37A1064