as skin oils can create hot spots that lead to premature failure

a different model in the Rib series should be selected

and 6 washers to facilitate a full flange-to-pipe-adapter connection

which should be inspected for thread integrity during service

Armstrong Furnace R43203-002 HSI Ignitor as skin oils can createThe Armstrong Furnace R43203 002 HSI Ignitor is a critical OEM replacement component engineered for precision ignition in Armstrong Air and Lennox family gas furnaces. As a high performance hot surface ignitor (HSI), this part is designed to reach the specific ohm range and temperature necessary to ensure consistent pilot free furnace ignition without tripping flame sensors or causing delayed ignition sequences. This genuine Armstrong replacement part