Engineered with heavy-duty materials

Apply a compatible thread sealant (like Teflon tape or pipe dope) only to the 3/8" FPT (Female Pipe Thread) side

this HVAC flame rod monitors the burner flame and sends a microamp signal to the integrated furnace control (IFC) to maintain the gas valve circuit

Can I use this to replace a 239-43448-00

If the switch opens

Armstrong Furnace R45689-001 Flame Rod Engineered with heavy-duty materialsThe Armstrong Furnace R45689 001 Flame Rod is a critical safety component designed for precise flame rectification in residential and commercial gas heating systems. This OEM replacement sensor detects the presence of a pilot or burner flame by converting AC voltage into a DC microamp signal, ensuring the integrated furnace control (IFC) maintains gas valve operation only when combustion is confirmed. Engineered for high temperature durability, the