Carrier HT680054 Transformer this replacement regulator spring is

this replacement regulator spring is compatible with Sensus 243

the internal diaphragm has likely lost its structural integrity or developed micro-perforations

a field-proven 120V silicon carbide hot surface igniter designed for maximum durability in gas-fired furnaces and boilers

this specific orifice is color-coded red and sized exclusively for liquid propane (LP) gas

The White-Rodgers 767A-366 Ignitor is a professional-grade silicon carbide hot surface igniter designed for direct replacement in 120V gas-fired heating systems

Carrier HT680054 Transformer this replacement regulator spring isThe Carrier HT680054 Transformer is an essential OEM component designed for high reliability voltage step down in residential and light commercial HVAC systems. This 40VA control transformer efficiently converts a 120V primary voltage to a stable 24V secondary output, providing the necessary Class 2 power for integrated furnace control boards, 24V contactor coils, and electronic thermostats. Built to meet rigorous factory specifications, the HT680054