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As a veteran-grade differential pressure reset controller
Its 4-inch stroke provides the mechanical advantage required for multi-section dampers
Versatile Mounting: Includes hardware for duct
this OEM Weil-McLain part ensures full compatibility with the combustion control circuit
Cleveland Controls NS2-3126-00 Pressure Switch 320788-704 As a veteran-grade differential pressureThe Cleveland Controls NS2 3126 00 Pressure Switch is a genuine OEM air pressure switch engineered for reliable pressure sensing in gas furnaces, HVAC equipment, boilers, and other combustion air systems. Factory calibrated to 0. 45" WC (inches water column), this pressure proving switch monitors inducer blower performance and verifies proper venting before allowing ignition. Accurate pressure sensing helps maintain safe equipment operation by
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