While the Williams P213400 is specifically mapped to Williams series 5008731 and 5008732

it is best suited for protected environments

The Mueller W01063 is a professional-grade 1-5/8" copper coupling engineered for high-pressure HVACR and potable water applications

125 psi lead-free model

For damper actuator accessories

York S1-025-37499-000 Flame Sensor While the Williams P213400 isThe York S1 025 37499 000 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in high efficiency gas furnaces. As a veteran grade HVAC replacement part, this sensor utilizes a high quality stainless steel rod designed to withstand extreme thermal conditioning without premature oxidation. It is the primary safeguard in the combustion cycle, ensuring the integrated furnace control board receives a steady DC