METAL Adaptor for Danfoss RA 22mm Thermostat Radiator Valve/TRV=30mm Head/SMART
This is a tough Steel Adaptor, not cheap brittle plastic like others. STAINLESS STEEL TRV/Thermostat Radiator ValveADAPTOR KIT FOR Danfoss22-23mm "RA -" Models ONLY, eg, RA-A, RA-B, RA-C, RA-FN, RAS-.See Photo 2 for 22/23mm RA Valve.