Many thanks for the help. that is the business
@sobriain I notice it says GB on the side. The following link shows its a 'type' or 'make' and gives dimensions.
@sobriain I'll try again with the pdf
@sobriain Are you posting these pics because the adapters do not fit or is this pre-purchase and you think they are unusual? They look fairly standard to me!
I have answered your post with a link to the model but it has been sent to support for approval - ???? Just google GB which is on the side of your TRV
Many thanks for the help. Google attempts did not give any meaningful results. No response yet from support.
@sobriain I'll try a different method - hope this works