TRV/Thermostat Radiator ValveADAPTOR, FITS ONLY NETATMO SMART TRV Models. This is a tough Fibre-Composite Adaptor, not cheap brittle plastic like others. Suitable for older radiator Valves with the now Obsolete 28mm Screw on fitting, and this then Converts it to the ModernNETATMO ONLY Ring-Screw fitting.
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