this Mueller Streamline copper fitting is seamless and lead-free (NSF/ANSI 61G compliant)

Dielectric Integrity: Premium ceramic insulation ensures the high-voltage pulse reaches the electrode tip without parasitic loss

As long as your unit utilizes the CD140 part number

verifying the continuity of this switch is a standard diagnostic step

ZoneFirst ZPS Zone Plenum Sensor this Mueller Streamline copper fittingThe ZoneFirst ZPS Zone Plenum Sensor is a critical duct mounted sensor designed for accurate supply air temperature monitoring in both residential and commercial HVAC zoning systems. This plenum rated temperature sensor integrates directly with MasterZone control panels to safeguard the heat exchanger and cooling coil. By providing real time data to the panel, the ZoneFirst ZPS prevents equipment damage caused by excessive heat or freezing