This spring is rated for 3" to 8" water column (WC)

this disc-style switch is vital for maintaining system integrity by monitoring potential overheating conditions

this unit is engineered for seamless HVAC system integration and consistent voltage regulation

Precision Monitoring: Provides accurate thermistor feedback to the control board to maintain setpoint accuracy and system safety

the 138-18-021-01 is a direct OEM replacement part that fits perfectly within the pilot assembly

Williams P320758 Pilot This spring is rated forThe Williams P320758 Pilot is a critical OEM furnace replacement part designed for precision ignition in Williams wall furnaces and high performance heating systems. Engineered with a winged deflector, this pilot burner assembly ensures a targeted flame pattern, essential for maintaining constant contact with the thermocouple or pilot generator. This specific configuration prevents common nuisance outages by stabilizing the flame against internal air