Johnson Controls T22TFB-1C : Line Voltage Wall Thermostat, 40 to 90 Deg F (5 to 30 C), Fixed Differential 3 Deg F (1.7 C) Heating, Adjustable Differential 3 to 4 Deg F (1.7 to 2.2 C) Cooling, SPDT, Heravy Duty Heating and Cooling, Knob, Heat-Off-Cool Switch, Seperate Loads
