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Designed for heavy-duty HVACR environments
verify your model and part number before installation
Johnson Controls A-4400-610 Bowl O Ring
High-Precision Calibration: Reliable 150-180 degree F temperature range protects the heat exchanger from cracks caused by excessive thermal stress
factory-calibrated timing that meets original equipment specifications
Berko 410169001 Limit Switch Designed for heavy-duty HVACR environmentsThe Berko 410169001 is a professional grade high limit switch designed for critical thermal protection in Marley Engineered Products, including QMark and Berko wall heaters. This auto reset limit switch features a ceramic housing to withstand high temperature environments without the risk of plastic deformation or contact failure. Specifically calibrated for a 175 225F operating range, the 410169001 ensures the heating element de energizes if internal
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