3X 15mm Thermostat Head Radiator Control Thermostatic Heater Head Heating Valve
Thermostat, just use the modulation index arrow 0. -Applicable spool size: 15mm. 3 M 30 x 1.5 thermostat. threaded connections for radiator manufacturers. - Note: 5 levels of modulation, easy to install, if you need to turn off the.