The Emerson Climate-White Rodgers 1E56N-444 Snapaction Thermostat is a non-programmable, vertical snap-action thermostat designed for 24V single-stage heating and cooling systems. It delivers precise temperature control by using a snap-action switch that quickly responds to room temperature changes, ensuring consistent comfort. This thermostat is compatible with standard HVAC equipmen... https://www.partshnc.com/1e56n-444-emerson-climate-white-rodgers-24v-1h1c-vertsnapaction