Adaptors for fitting Myson TRV2Way heads onto TRV bodies with a M28x1.5 head connection (old myson thread). Also suitable for: Multi-Fit TRV Head Honeywell HR80/HR80UK Honeywell Evohome HR92/HR9..

Adaptors for fitting a head with a M30x1.5 thread onto TRV bodies with a Tour Andersson head connection. Suitable for (see related items): Multi-Fit TRV Head Honeywell HR80/HR80UK Hone..

M30x1.5 Thread.Suitable for use with:Honeywell HR80 CM Zone radiator controllers.Pegler I-Temp Programmable TRVs.Multi-Fit Thermal Actuators.eTRVDanfoss Randall Living Eco..