We have Myson LST radiators in part of the house and two of them have the same problem. The plastic housing for the remote bellows that operate the TRV have broken on both.
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Any ideas where I can get a replacement. Myson have not bothered replying to emails I have sent them asking if they have a parts stockist, and Google throws up so much crap that its like looking for a needle in a haystack among the search results.
Mike