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The Lennox 18J37 Limit Switch is a critical safety component engineered for high-performance thermal regulation in residential and light industrial furnaces
Full Internal Overhaul: The 304-030 repair kit provides all critical wear items
Optimized Superheat Control: Specifically calibrated for R22 and R407C heat pump systems to maintain precise evaporator efficiency
OEM Reliability: Direct replacement for part number SWT01714
making it suitable for high-pressure systems
Lochinvar & A.O. Smith 100157743 Kit Els PW 17895 The Lennox 18J37 Limit SwitchProfessionals in the field know that maintaining system integrity starts with high quality safety components. The Lochinvar & A. O. Smith 100157743 Kit is a direct OEM replacement part featuring a 230F manual reset high limit switch. This kit is technically identical to the Lochinvar KIT3117, engineered specifically for high performance water heaters and boiler systems. When a primary thermostat fails, this 230 degree high limit kit acts as a critical
US$ 199.00
US$ 149.00
