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making it a direct cross-reference for numerous legacy Source 1 and Coleman furnace models
While the 1/2" bore is standard
Can I install this without a specialized tool
allowing for faster
Exact OEM Compatibility: Perfectly fits Lochinvar Copper-Fin II CP 991-2071 and A
Bard HVAC 8406-042BX Pressure Switch Els PW 17895 making it a direct cross-referenceThe Bard 8406 042BX Pressure Switch is the direct engineering update for the legacy 8406 042, specifically designed for precise differential pressure sensing in Bard wall mount units. Calibrated for a 0. 28" PF pressure set point, this normally open air pressure switch monitors blower operation and heat pump airflow to prevent coil icing or compressor damage. For technicians diagnosing HVAC pressure switch failure, this component ensures the system
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