Honeywell Home-Resideo Thermostatic Radiator Actuator - High Capacity - Integral Sensor and Setpoint - 43° F to 79° F

The Honeywell Home-Resideo T104A1040 High Capacity Thermostatic Radiator Actuator provides precise and automatic control of room temperature in two-pipe systems by modulating the flow of hot water or steam through free-standing radiators, convectors...