Availability: Included in the tado° package Slightly pull the adapter open and close it firmly over the valve thread.Please contact us if the above adapter is missing from the tado° package. Related ArticlesHow do I mount the adapter for Giacomini 22,6 mm valves to fit my Smart Radiator Thermostat?How do I mount the adapter for Danfoss RAV 34 mm with 4 notches radiator valves to fit my Smart Radiator Thermostat?How do I mount the adapter for Caleffi 23mm valves to fit my Smart Radiator Thermostat?How do I mount the adapter for Danfoss RA 23 mm with notches radiator valves to fit my Smart Radiator Thermostat?How do I mount the adapter for M28 x 1.5 valves to fit my Smart Radiator Thermostat?