Supco 43004A Horizontal Mechanical Heating/Cooling Thermostats, 50 to 90 Degree F, 24 VAC
Brand: Supco
For use with most 4 or 5 wire 24 vac systems and single-stage heat pumps
Adjustable heat anticipator
Terminations: RC, RH, W, Y, G, O, B
Used in standard heating/cooling system