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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
Durable Brass Construction: Built for daily field use with hand-tighten convenience and solid electrical contact points
Direct OEM Compatibility: Ensures seamless integration with Daikin McQuay air handlers and rooftop units without modifying mounting brackets
reducing wear on internal compressor bearings
ensure you verify the blower wheel condition
DSI (Direct Spark Ignition)
Lochinvar & A.O. Smith 100170487 Upper Sensor 320735-701 Durable Brass Construction: Built forThe Lochinvar & A. O. Smith 100170487 Upper Sensor (formerly TST1187) is a critical thermistor based component engineered for high precision temperature monitoring in residential and commercial water heaters. As a direct immersion NTC temperature sensor, it provides real time resistance feedback to the control board, ensuring the appliance maintains optimal setpoints while preventing dangerous high limit conditions. This OEM water heater sensor is