The Lennox 78M26 Crankcase Heater Thermostat is a specialist component that HVAC systems, especially in compressors during colder weather. This thermostat type is an SPST switch that operates at 125V, assuring consistent and efficient functioning. The tiny design, measuring 13" in length, 1" in width, and 1" in height, enables for simple installation inside the compressor crankcase. T... https://www.usapoolshop.com/78m26-lennox-crankcase-heater-thermostat