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This robust HVACR air vent features a 3/4 inch NPT inlet and a 1/4 inch NPT outlet
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Lennox 20J99 Limit Switch 323269-701 This robust HVACR air ventThe Lennox 20J99 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a normally closed thermal protector, this switch features an automatic reset mechanism calibrated for a 130 160F temperature range. When the heat exchanger area exceeds the 160F threshold, the internal bimetal disc triggers the circuit to open, immediately interrupting the gas valve or
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