High-Pressure Tolerance: The specialized bronze composition allows for safe operation at initial supply pressures reaching 300 psi (21 bar)

there is no difference in specifications or build

This unit is engineered to handle a maximum supply pressure of up to 300 PSIG (20

Reliable Igniter Timing: Optimized DSI sequences reduce nuisance lockouts and improve cold-weather startup reliability

Always verify the Full Load Amperage (FLA) and Locked Rotor Amperage (LRA) on the motor nameplate against the ratings inside the control cover before installation

Williams P500420 Gas Valve 319825-402 High-Pressure Tolerance: The specialized bronzeAs a seasoned tech, you know that maintaining precise manifold pressure is non negotiable for system safety and combustion efficiency. The Williams P500420 Gas Valve is an OEM replacement gas valve engineered specifically for Williams Comfort Products heating systems. This 10. 5" WC LP gas valve is factory calibrated for liquid propane (LP) applications, ensuring the correct fuel to air ratio for high output furnace gas valve performance. Whether you