Thermostat Set = Thermostat Head + Thermostat Valve + Return Fitting 1/2 Inch Flow Radiator Valve : Amazon.de: DIY & Tools
Multiblock Set Tap Block Thermostatic Radiator Valve Set Passage 1/2 Inch Brass Central Heating Control Connection Fitting Radiator Thermostat Thermostat Head M30 x 1.5 : Amazon.de: DIY & Tools